diff --git a/modules/pico_ipv4.c b/modules/pico_ipv4.c
index 6926e3d52..9cd0f10cf 100644
--- a/modules/pico_ipv4.c
+++ b/modules/pico_ipv4.c
@@ -1307,7 +1307,7 @@ int pico_ipv4_link_del(struct pico_device *dev, struct pico_ip4 address)
             PICO_FREE(g);
         }
     } while(0);
-    pico_free(found->MCASTGroups);
+    PICO_FREE(found->MCASTGroups);
 #endif
 
     pico_ipv4_cleanup_routes(found);