diff --git a/lib/systems/inspect.nix b/lib/systems/inspect.nix
index 5e5e92699e44..38ca9967cdde 100644
--- a/lib/systems/inspect.nix
+++ b/lib/systems/inspect.nix
@@ -62,7 +62,8 @@ rec {
 
     is32bit        = { cpu = { bits = 32; }; };
     is64bit        = { cpu = { bits = 64; }; };
-    isILP32        = map (a: { abi = { abi = a; }; }) [ "n32" "ilp32" "x32" ];
+    isILP32        = [ { cpu = { family = "wasm"; bits = 32; }; } ] ++
+                     map (a: { abi = { abi = a; }; }) [ "n32" "ilp32" "x32" ];
     isBigEndian    = { cpu = { significantByte = significantBytes.bigEndian; }; };
     isLittleEndian = { cpu = { significantByte = significantBytes.littleEndian; }; };