diff --git a/common/canvas_base.c b/common/canvas_base.c
index 796bda3..4dedfcf 100644
--- a/common/canvas_base.c
+++ b/common/canvas_base.c
@@ -53,10 +53,12 @@
 #define WARN(x) printf("warning: %s\n", x)
 #endif
 
+#ifndef PANIC
 #define PANIC(str) {                                \
     printf("%s: panic: %s", __FUNCTION__, str);     \
     abort();                                        \
 }
+#endif
 
 #ifndef DBG
 #define DBG(level, format, ...) printf("%s: debug: " format "\n", __FUNCTION__, ## __VA_ARGS__);