diff --git a/tests/test_core.py b/tests/test_core.py
index 2cdbb3a..032974c 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -129,7 +129,7 @@ def test_findlib2():
     open(os.path.join(fi_dir, "notalib.test.so"), "wb")
 
     # Loading libs
-    gllib = ctypes.util.find_library("GL")
+    gllib = "@libgl@"
     core.load_lib([gllib], [])
     # Fail
     raises(ValueError, core.load_lib, [], [])  # Nothing given