diff --git a/pkgs/by-name/gl/glog/package.nix b/pkgs/by-name/gl/glog/package.nix
index cfe37529d3b3..ef5fb3be4277 100644
--- a/pkgs/by-name/gl/glog/package.nix
+++ b/pkgs/by-name/gl/glog/package.nix
@@ -38,6 +38,8 @@ stdenv.mkDerivation (finalAttrs: {
     # consumers of the CMake config file to fail at the configuration step.
     # Explicitly disabling unwind support sidesteps the issue.
     "-DWITH_UNWIND=OFF"
+    # Enable pkg-config support so that a `.pc` file is generated.
+    "-DWITH_PKGCONFIG=ON"
   ];
 
   doCheck = true;