diff --git a/pkgs/applications/science/chemistry/openmolcas/default.nix b/pkgs/applications/science/chemistry/openmolcas/default.nix
index 695d5502b5eb..f8ebf5251fc0 100644
--- a/pkgs/applications/science/chemistry/openmolcas/default.nix
+++ b/pkgs/applications/science/chemistry/openmolcas/default.nix
@@ -104,7 +104,7 @@ stdenv.mkDerivation {
     "-DTOOLS=ON"
     "-DHDF5=ON"
     "-DFDE=ON"
-    "-DEXTERNAL_LIBXC=${libxc}"
+    "-DEXTERNAL_LIBXC=${lib.getDev libxc}"
     "-DDMRG=ON"
     "-DNEVPT2=ON"
     "-DCMAKE_SKIP_BUILD_RPATH=ON"