diff --git a/pkgs/development/compilers/cudatoolkit/versions.toml b/pkgs/development/compilers/cudatoolkit/versions.toml
index adbf3a080cae..46173cca12cd 100644
--- a/pkgs/development/compilers/cudatoolkit/versions.toml
+++ b/pkgs/development/compilers/cudatoolkit/versions.toml
@@ -50,7 +50,9 @@ gcc = "gcc10"
 version = "11.5.0"
 url = "https://developer.download.nvidia.com/compute/cuda/11.5.0/local_installers/cuda_11.5.0_495.29.05_linux.run"
 sha256 = "sha256-rgoWk9lJfPPYHmlIlD43lGNpANtxyY1Y7v2sr38aHkw="
-gcc = "gcc10" # cuda 11.5 has problems with glibc 2.4 -> keeping gcc10
+# cuda 11.5 has problems with glibc 2.4 -> keeping gcc10
+# cf. https://forums.developer.nvidia.com/t/cuda-11-5-samples-throw-multiple-error-attribute-malloc-does-not-take-arguments/192750/15
+gcc = "gcc10"
 
 ["11.6"]
 version = "11.6.1"