diff --git a/pkgs/development/tools/cmake-language-server/default.nix b/pkgs/development/tools/cmake-language-server/default.nix
index 2c85890e70bf..e071b8aad50f 100644
--- a/pkgs/development/tools/cmake-language-server/default.nix
+++ b/pkgs/development/tools/cmake-language-server/default.nix
@@ -16,11 +16,15 @@ buildPythonApplication rec {
     sha256 = "0vz7bjxkk0phjhz3h9kj6yr7wnk3g7lqmkqraa0kw12mzcfck837";
   };
 
-  # can be removed after v0.1.2
-  patches = lib.optional stdenv.isDarwin (fetchpatch {
-    url = "https://github.com/regen100/cmake-language-server/commit/0ec120f39127f25898ab110b43819e3e9becb8a3.patch";
-    sha256 = "1xbmarvsvzd61fnlap4qscnijli2rw2iqr7cyyvar2jd87z6sfp0";
-  });
+  patches = [
+    ./disable-test-timeouts.patch
+  ] ++ lib.optionals stdenv.isDarwin [
+    # can be removed after v0.1.2
+    (fetchpatch {
+      url = "https://github.com/regen100/cmake-language-server/commit/0ec120f39127f25898ab110b43819e3e9becb8a3.patch";
+      sha256 = "1xbmarvsvzd61fnlap4qscnijli2rw2iqr7cyyvar2jd87z6sfp0";
+    })
+  ];
 
   postPatch = ''
     substituteInPlace pyproject.toml \
diff --git a/pkgs/development/tools/cmake-language-server/disable-test-timeouts.patch b/pkgs/development/tools/cmake-language-server/disable-test-timeouts.patch
new file mode 100644
index 000000000000..febe7cf77e71
--- /dev/null
+++ b/pkgs/development/tools/cmake-language-server/disable-test-timeouts.patch
@@ -0,0 +1,13 @@
+diff --git a/tests/test_server.py b/tests/test_server.py
+index c0777f5..1184fb3 100644
+--- a/tests/test_server.py
++++ b/tests/test_server.py
+@@ -11,7 +11,7 @@ from pygls.types import (CompletionContext, CompletionParams,
+                          InitializeParams, Position, TextDocumentIdentifier,
+                          TextDocumentItem, TextDocumentPositionParams)
+ 
+-CALL_TIMEOUT = 2
++CALL_TIMEOUT = None
+ 
+ 
+ def _init(client: LanguageServer, root: Path):