diff --git a/src/redis-check-aof.c b/src/redis-check-aof.c
index c4d5a225e..54ed85f0d 100644
--- a/src/redis-check-aof.c
+++ b/src/redis-check-aof.c
@@ -33,8 +33,8 @@
 
 #define ERROR(...) { \
     char __buf[1024]; \
-    sprintf(__buf, __VA_ARGS__); \
-    sprintf(error, "0x%16llx: %s", (long long)epos, __buf); \
+    snprintf(__buf, sizeof(__buf), __VA_ARGS__); \
+    snprintf(error, sizeof(error), "0x%16llx: %s", (long long)epos, __buf); \
 }
 
 static char error[1024];