diff --git a/interfaces/inner_api/syscap_interface.c b/interfaces/inner_api/syscap_interface.c
index 569cab1b14556b29ad798d7594e9eb9aa4e91cae..eeb349d0a13b800a58d7d2ffde3177f501bd27db 100644
--- a/interfaces/inner_api/syscap_interface.c
+++ b/interfaces/inner_api/syscap_interface.c
@@ -168,7 +168,7 @@ bool EncodePrivateSyscap(char **output, int *outputLen)
     }
     outputStr = (char *)calloc(priLen, sizeof(char));
     if (outputStr == NULL) {
-        PRINT_ERR("malloc buffer failed, size = %d, errno = %d\n", priLen, errno);
+        PRINT_ERR("malloc buffer failed, size = %u, errno = %d\n", priLen, errno);
         *outputLen = 0;
         return false;
     }