diff --git a/t/t_openpam_straddch.c b/t/t_openpam_straddch.c
index 03cdba7..55fbbb0 100644
--- a/t/t_openpam_straddch.c
+++ b/t/t_openpam_straddch.c
@@ -122,7 +122,7 @@ end:
 static int
 t_straddch_realloc_ok(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
 {
-	char *str, *_str;
+	char *str;
 	size_t size, _size, len, _len;
 	int i, ret;
 
@@ -136,7 +136,6 @@ t_straddch_realloc_ok(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
 	if (!ret)
 		goto end;
 	// repeatedly append to it until size changes
-	_str = str;
 	_size = size;
 	_len = len;
 	for (i = ' '; i <= '~'; i++) { // assume ascii