diff --git a/src/common/xqc_priority_q.h b/src/common/xqc_priority_q.h
index ff223474..5c8d0f26 100644
--- a/src/common/xqc_priority_q.h
+++ b/src/common/xqc_priority_q.h
@@ -2,8 +2,8 @@
  * @copyright Copyright (c) 2022, Alibaba Group Holding Limited
  */
 
-#ifndef _NGX_H_PRIORITY_Q_INCLUDED_
-#define _NGX_H_PRIORITY_Q_INCLUDED_
+#ifndef _XQC_H_PRIORITY_Q_INCLUDED_
+#define _XQC_H_PRIORITY_Q_INCLUDED_
 
 #include <string.h>
 #include <stdint.h>
@@ -186,4 +186,4 @@ xqc_pq_pop(xqc_pq_t *pq)
 #undef xqc_pq_element
 #undef xqc_pq_element_copy
 
-#endif /*_NGX_H_PRIORITY_Q_INCLUDED_*/
+#endif /*_XQC_H_PRIORITY_Q_INCLUDED_*/
diff --git a/src/common/xqc_str.c b/src/common/xqc_str.c
index fa0da576..aa7f25b1 100644
--- a/src/common/xqc_str.c
+++ b/src/common/xqc_str.c
@@ -281,11 +281,12 @@ xqc_vsprintf(unsigned char *buf, unsigned char *last, const char *fmt, va_list a
 unsigned char *
 xqc_sprintf_num(unsigned char *buf, unsigned char *last, uint64_t ui64, unsigned char zero, uintptr_t hexadecimal, uintptr_t width)
 {
-    unsigned char         *p, temp[XQC_INT64_LEN + 1];
     /*
-     * we need temp[NGX_INT64_LEN] only,
+     * we need temp[XQC_INT64_LEN] only,
      * but icc issues the warning
      */
+    unsigned char   *p, temp[XQC_INT64_LEN + 1];
+
     size_t          len;
     uint32_t        ui32;
     static const unsigned char   hex[] = "0123456789abcdef";