diff --git a/c/CUDA/CUDA-9.1.85.eb b/c/CUDA/CUDA-9.1.85.eb
index 0100f4d0..5d50aa6f 100644
--- a/c/CUDA/CUDA-9.1.85.eb
+++ b/c/CUDA/CUDA-9.1.85.eb
@@ -15,8 +15,11 @@ sources = ['cuda_9.1.85_387.26_linux']
 
 modextravars = {
    'CUDA_HOME': '%(installdir)s',
-   'LD_LIBRARY_PATH': '%(installdir)s/lib64/stubs',
-   'LIBRARY_PATH': '%(installdir)s/lib64/stubs',
+}
+
+modextrapaths = {
+  'LIBRARY_PATH': 'lib64/stubs',
+  'LD_LIBRARY_PATH': 'lib64/stubs',
 }
 
 modluafooter = 'add_property("arch","gpu")'