diff -r f094a53c1178 -r c195c33de85d test/test_allocator.c
--- a/test/test_allocator.c	Sun Feb 07 12:20:07 2021 +0100
+++ b/test/test_allocator.c	Sun Feb 07 12:27:21 2021 +0100
@@ -59,6 +59,8 @@
 }
 
 void test_default_free(void) {
+    void* test = malloc(16);
+    cxFree(cxDefaultAllocator, test);
     CU_PASS("Testing standard free is not possible.")
 }