diff --git a/src/Language.hs b/src/Language.hs
index 82ac652de..285e6d658 100644
--- a/src/Language.hs
+++ b/src/Language.hs
@@ -50,7 +50,7 @@ termConstructor
 termConstructor source (range :. category :. sourceSpan :. Nil) children _ =
   withDefaultInfo $ case (category, children) of
     (Error, _) -> S.Error children
-    (_, []) -> S.Leaf (toText $ slice range source)
+    (_, []) -> S.Leaf (toText source)
     _ -> S.Indexed children
   where
     withDefaultInfo syntax =
diff --git a/src/Language/C.hs b/src/Language/C.hs
index e748dad33..2c14a54fd 100644
--- a/src/Language/C.hs
+++ b/src/Language/C.hs
@@ -9,7 +9,7 @@ import qualified Syntax as S
 import Term
 
 termConstructor
-  :: Source Char -- ^ The source that the term occurs within.
+  :: Source Char -- ^ The source of the term.
   -> Record '[Range, Category, SourceSpan] -- ^ The proposed annotation for the term.
   -> [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ The child nodes of the term.
   -> IO [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ All child nodes (included unnamed productions) of the term as 'IO'. Only use this if you need it.
@@ -17,7 +17,7 @@ termConstructor
 termConstructor source (range :. category :. sourceSpan :. Nil) children _
   | category == Error = withDefaultInfo (S.Error children)
   | otherwise = withDefaultInfo $ case children of
-  [] -> S.Leaf . toText $ slice range source
+  [] -> S.Leaf $ toText source
   _ -> S.Indexed children
   where
     withDefaultInfo syntax = pure $! cofree ((range :. category :. sourceSpan :. Nil) :< syntax)
diff --git a/src/Language/Go.hs b/src/Language/Go.hs
index 17a1d4b05..31a2d4018 100644
--- a/src/Language/Go.hs
+++ b/src/Language/Go.hs
@@ -11,7 +11,7 @@ import Range (unionRangesFrom)
 import SourceSpan (unionSourceSpansFrom)
 
 termConstructor
-  :: Source Char -- ^ The source that the term occurs within.
+  :: Source Char -- ^ The source of the term.
   -> Record '[Range, Category, SourceSpan] -- ^ The proposed annotation for the term.
   -> [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ The child nodes of the term.
   -> IO [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ All child nodes (included unnamed productions) of the term as 'IO'. Only use this if you need it.
@@ -103,17 +103,17 @@ termConstructor source (range :. category :. sourceSpan :. Nil) children _ = pur
     let params = withRanges range Params children $ S.Indexed children
     in withDefaultInfo $ S.Ty params
   IncrementStatement ->
-    withDefaultInfo $ S.Leaf . toText $ slice range source
+    withDefaultInfo $ S.Leaf $ toText source
   DecrementStatement ->
-    withDefaultInfo $ S.Leaf . toText $ slice range source
+    withDefaultInfo $ S.Leaf $ toText source
   QualifiedIdentifier ->
-    withDefaultInfo $ S.Leaf . toText $ slice range source
+    withDefaultInfo $ S.Leaf $ toText source
   Break -> toBreak children
   Continue -> toContinue children
   Pair -> toPair children
   Method -> toMethod children
   _ -> withDefaultInfo $ case children of
-    [] -> S.Leaf . toText $ slice range source
+    [] -> S.Leaf $ toText source
     _ -> S.Indexed children
   where
     toMethod = \case
diff --git a/src/Language/JavaScript.hs b/src/Language/JavaScript.hs
index 6c42ad279..247025db4 100644
--- a/src/Language/JavaScript.hs
+++ b/src/Language/JavaScript.hs
@@ -13,7 +13,7 @@ operators :: [Category]
 operators = [ Operator, BooleanOperator, MathOperator, RelationalOperator, BitwiseOperator ]
 
 termConstructor
-  :: Source Char -- ^ The source that the term occurs within.
+  :: Source Char -- ^ The source of the term.
   -> Record '[Range, Category, SourceSpan] -- ^ The proposed annotation for the term.
   -> [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ The child nodes of the term.
   -> IO [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ All child nodes (included unnamed productions) of the term as 'IO'. Only use this if you need it.
@@ -54,7 +54,7 @@ termConstructor source (range :. category :. sourceSpan :. Nil) children allChil
     (Case, _ ) -> S.Error children
     (Object, _) -> S.Object Nothing $ foldMap toTuple children
     (Pair, _) -> S.Fixed children
-    (Comment, _) -> S.Comment . toText $ slice range source
+    (Comment, _) -> S.Comment $ toText source
     (If, expr : rest ) -> S.If expr rest
     (If, _ ) -> S.Error children
     (While, expr : rest ) -> S.While expr rest
@@ -98,7 +98,7 @@ termConstructor source (range :. category :. sourceSpan :. Nil) children allChil
       [ params, body ] -> S.AnonymousFunction (toList (unwrap params)) [body]
       [ id, params, body ] -> S.Function id (toList (unwrap params)) [body]
       _ -> S.Error children
-    (_, []) -> S.Leaf . toText $ slice range source
+    (_, []) -> S.Leaf $ toText source
     _ -> S.Indexed children
   where
     withDefaultInfo syntax =
diff --git a/src/Language/Ruby.hs b/src/Language/Ruby.hs
index af344fa8d..405cb3874 100644
--- a/src/Language/Ruby.hs
+++ b/src/Language/Ruby.hs
@@ -14,7 +14,7 @@ operators :: [Category]
 operators = [ Binary, Unary, RangeExpression, ScopeOperator ]
 
 termConstructor
-  :: Source Char -- ^ The source that the term occurs within.
+  :: Source Char -- ^ The source of the term.
   -> Record '[Range, Category, SourceSpan] -- ^ The proposed annotation for the term.
   -> [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ The child nodes of the term.
   -> IO [ SyntaxTerm Text '[Range, Category, SourceSpan] ] -- ^ All child nodes (included unnamed productions) of the term as 'IO'. Only use this if you need it.
@@ -58,7 +58,7 @@ termConstructor source (range :. category :. sourceSpan :. Nil) children allChil
     (Class, _ ) -> S.Error children
     (SingletonClass, identifier : rest ) -> S.Class identifier Nothing rest
     (SingletonClass, _ ) -> S.Error children
-    (Comment, _ ) -> S.Comment . toText $ slice range source
+    (Comment, _ ) -> S.Comment $ toText source
     (Ternary, condition : cases) -> S.Ternary condition cases
     (Ternary, _ ) -> S.Error children
     (Constant, _ ) -> S.Fixed children
@@ -117,7 +117,7 @@ termConstructor source (range :. category :. sourceSpan :. Nil) children allChil
     (While, _ ) -> S.Error children
     (Yield, _ ) -> S.Yield children
     _ | category `elem` [ BeginBlock, EndBlock ] -> S.BlockStatement children
-    (_, []) -> S.Leaf . toText $ slice range source
+    (_, []) -> S.Leaf $ toText source
     _  -> S.Indexed children
   where
     withRecord record syntax = cofree (record :< syntax)
diff --git a/src/TreeSitter.hs b/src/TreeSitter.hs
index d2a11ce0d..d6db15a71 100644
--- a/src/TreeSitter.hs
+++ b/src/TreeSitter.hs
@@ -57,7 +57,7 @@ documentToTerm language document SourceBlob{..} = alloca $ \ root -> do
           -- Without it, we may not evaluate the value until after we’ve exited
           -- the scope that `node` was allocated within, meaning `alloca` will
           -- free it & other stack data may overwrite it.
-          range `seq` sourceSpan `seq` assignTerm language source (range :. categoryForLanguageProductionName language (toS name) :. sourceSpan :. Nil) children allChildren
+          range `seq` sourceSpan `seq` assignTerm language (slice range source) (range :. categoryForLanguageProductionName language (toS name) :. sourceSpan :. Nil) children allChildren
         getChild node n out = ts_node_p_named_child node n out >> toTerm out
         {-# INLINE getChild #-}
         getUnnamedChild node n out = ts_node_p_child node n out >> toTerm out