diff --git a/pkgs/development/libraries/onnxruntime/default.nix b/pkgs/development/libraries/onnxruntime/default.nix
index e3ef22676412807..77730cb8820e598 100644
--- a/pkgs/development/libraries/onnxruntime/default.nix
+++ b/pkgs/development/libraries/onnxruntime/default.nix
@@ -86,6 +86,9 @@ stdenv.mkDerivation rec {
   postPatch = ''
     substituteInPlace cmake/external/abseil-cpp.cmake \
       --replace "${abseil.url}" "${abseil}"
+
+    substituteInPlace cmake/libonnxruntime.pc.cmake.in \
+      --replace '$'{prefix}/@CMAKE_INSTALL_ @CMAKE_INSTALL_
   '';
 
   postInstall = ''