1 files changed, 2 insertions, 0 deletions
diff --git a/src/e2e.h b/src/e2e.h
index 167a83a..72ba8a2 100644
--- a/src/e2e.h
+++ b/src/e2e.h
@@ -1,6 +1,8 @@
 #include <inttypes.h>
 #include "eli.h"
 
+#define errorf(fmt, ...) (fprintf(stderr, fmt, ##__VA_ARGS__))
+
 #define IMAGE_FUNDUS    0x02010201
 #define IMAGE_TOMOGRAM  0x02200201