8fc6a19
diff --git a/common-src/testutils.h b/common-src/testutils.h
8fc6a19
index 31f89737..2e9bb0b3 100644
8fc6a19
--- a/common-src/testutils.h
8fc6a19
+++ b/common-src/testutils.h
8fc6a19
@@ -75,7 +75,7 @@ typedef struct TestUtilsTest {
8fc6a19
 #define tu_dbg(...) if (tu_debugging_enabled) { g_fprintf(stderr, __VA_ARGS__); }
8fc6a19
 
8fc6a19
 /* Is debugging enabled for this test run? (set internally) */
8fc6a19
-int tu_debugging_enabled;
8fc6a19
+extern gboolean tu_debugging_enabled;
8fc6a19
 
8fc6a19
 /*
8fc6a19
  * Main loop