diff --git a/lib/urldata.h b/lib/urldata.h
index 47f5f79628aee12b6442e5d9c90b02828ee1c234..83b646ea5c0323d67fec0ddeddbb305c03ca2f9e 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -122,6 +122,9 @@
 
 #ifdef USE_AXTLS
 #include <axTLS/ssl.h>
+#undef malloc
+#undef calloc
+#undef realloc
 #endif /* USE_AXTLS */
 
 #ifdef HAVE_NETINET_IN_H