diff --git a/src/torch_api.F b/src/torch_api.F
index ab0e36db9a..d3990e0aea 100644
--- a/src/torch_api.F
+++ b/src/torch_api.F
@@ -366,7 +366,7 @@ END FUNCTION torch_c_cuda_is_available
       res = torch_c_cuda_is_available()
 #else
       CPABORT("CP2K was compiled without Torch library.")
-      MARK_USED(res)
+      res = .FALSE.
 #endif
    END FUNCTION torch_cuda_is_available