diff --git a/src/anqputil.c b/src/anqputil.c
index c0e0307e..724ff22d 100644
--- a/src/anqputil.c
+++ b/src/anqputil.c
@@ -131,7 +131,7 @@ char **anqp_parse_nai_realms(const unsigned char *anqp, unsigned int len)
 	uint16_t count;
 
 	if (len < 2)
-		return false;
+		return NULL;
 
 	count = l_get_le16(anqp);