diff --git a/pkgs/applications/graphics/freecad/default.nix b/pkgs/applications/graphics/freecad/default.nix
index 0cc93bbbe8ab..995fcdade1a4 100644
--- a/pkgs/applications/graphics/freecad/default.nix
+++ b/pkgs/applications/graphics/freecad/default.nix
@@ -4,7 +4,7 @@
 , fetchFromGitHub
 , cmake
 , ninja
-, GitPython
+, gitpython
 , boost
 , coin3d
 , eigen
@@ -68,7 +68,7 @@ mkDerivation rec {
   ];
 
   buildInputs = [
-    GitPython # for addon manager
+    gitpython # for addon manager
     boost
     coin3d
     eigen