diff --git a/ext/dba/libinifile/inifile.c b/ext/dba/libinifile/inifile.c
index c5467396d4bf..4dc687ea6681 100644
--- a/ext/dba/libinifile/inifile.c
+++ b/ext/dba/libinifile/inifile.c
@@ -111,7 +111,7 @@ void inifile_free(inifile *dba, int persistent)
 key_type inifile_key_split(const char *group_name)
 {
 	key_type key;
-	char *name;
+	const char *name;
 
 	if (group_name[0] == '[' && (name = strchr(group_name, ']')) != NULL) {
 		key.group = estrndup(group_name+1, name - (group_name + 1));
diff --git a/ext/readline/readline_cli.c b/ext/readline/readline_cli.c
index 312129991c70..2b0950784bf2 100644
--- a/ext/readline/readline_cli.c
+++ b/ext/readline/readline_cli.c
@@ -529,7 +529,8 @@ static char *cli_completion_generator(const char *text, int index) /* {{{ */
 	} else if (text[0] == '#' && text[1] != '[') {
 		retval = cli_completion_generator_ini(text, textlen, &cli_completion_state);
 	} else {
-		char *lc_text, *class_name_end;
+		char *lc_text;
+		const char *class_name_end;
 		zend_string *class_name = NULL;
 		zend_class_entry *ce = NULL;