diff --git a/src/lib/eina/eina_cow.c b/src/lib/eina/eina_cow.c
index f51fcf7597..e816d1a1d8 100644
--- a/src/lib/eina/eina_cow.c
+++ b/src/lib/eina/eina_cow.c
@@ -38,7 +38,7 @@
 #ifdef HAVE_BACKTRACE
 # include <execinfo.h>
 #endif
-
+#undef EINA_COW_MAGIC_ON
 #ifdef EINA_COW_MAGIC_ON
 #define EINA_COW_MAGIC 0xDEADBEEF