1 files changed, 2 insertions, 2 deletions
diff --git a/Zend/zend_hash.h b/Zend/zend_hash.h
index 3d13c3322b..8aa1286e26 100644
--- a/Zend/zend_hash.h
+++ b/Zend/zend_hash.h
@@ -60,7 +60,7 @@ typedef struct bucket {
 	struct bucket *pListLast;
 	struct bucket *pNext;
 	struct bucket *pLast;
-	char *arKey;
+	const char *arKey;
 } Bucket;
 
 typedef struct _hashtable {
@@ -83,7 +83,7 @@ typedef struct _hashtable {
 
 
 typedef struct _zend_hash_key {
-	char *arKey;
+	const char *arKey;
 	uint nKeyLength;
 	ulong h;
 } zend_hash_key;