1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_utils.h b/src/sp_utils.h
index 7bab4ba..36caa52 100644
--- a/src/sp_utils.h
+++ b/src/sp_utils.h
@@ -84,7 +84,7 @@ void unhook_functions(HashTable *ht);
 int hook_regexp(const sp_pcre *, HashTable *, zif_handler);
 bool check_is_in_eval_whitelist(const char* function_name);
 int sp_log_request(zend_string const* const restrict folder, zend_string const* const restrict text_repr);
-#define sp_zend_string_equals(s1, s2) zend_string_equals((zend_string*)s1, (zend_string*)s2)
+#define sp_zend_string_equals(s1, s2) zend_string_equals((const zend_string*)s1, (const zend_string*)s2)
 static inline bool sp_zend_string_equals_str(const zend_string* s1, const char *str, size_t len) {
   return (ZSTR_LEN(s1) == len && !memcmp(ZSTR_VAL(s1), str, len));
 }