diff --git a/utils/nsurl.c b/utils/nsurl.c
index 006977111..af6581d0d 100644
--- a/utils/nsurl.c
+++ b/utils/nsurl.c
@@ -1652,7 +1652,7 @@ nserror nsurl_join(const nsurl *base, const char *rel, nsurl **joined)
 	if (buff == NULL)
 		return NSERROR_NOMEM;
 
-	buff_start = buff_pos = buff;
+	buff_pos = buff;
 
 	/* Form joined URL from base or rel components, as appropriate */