--- EV/EV.xs	2020/02/18 16:49:07	1.181
+++ EV/EV.xs	2020/02/18 16:50:21	1.182
@@ -28,6 +28,7 @@
 #endif
 
 /* make sure we get a real assert, not perl's incompatible version */
+#undef assert
 #include <assert.h>
 
 #define EV_STANDALONE 1