diff --git a/lib/libfetch/Makefile b/lib/libfetch/Makefile
index 5091adf7c33..3794f2ffdca 100644
--- a/lib/libfetch/Makefile
+++ b/lib/libfetch/Makefile
@@ -26,7 +26,7 @@ LDADD=		-lmd
 CFLAGS+=	-DFTP_COMBINE_CWDS
 
 CSTD?=		c99
-WARNS?=		2
+WARNS?=		3
 
 SHLIB_MAJOR=    6
 
diff --git a/lib/libfetch/http.c b/lib/libfetch/http.c
index 531342a7006..d90404a9103 100644
--- a/lib/libfetch/http.c
+++ b/lib/libfetch/http.c
@@ -508,7 +508,7 @@ http_conn_trimright(conn_t *conn)
 static hdr_t
 http_next_header(conn_t *conn, http_headerbuf_t *hbuf, const char **p)
 {
-	int i, len;
+	unsigned int i, len;
 
 	/* 
 	 * Have to do the stripping here because of the first line. So