diff --git a/arch/powerpc/boot/gunzip_util.c b/arch/powerpc/boot/gunzip_util.c
index df8ab07e9ff46242749deda96f21b7de015bad46..e1e215e16983cced81a78e14fb9c51aead147e8c 100644
--- a/arch/powerpc/boot/gunzip_util.c
+++ b/arch/powerpc/boot/gunzip_util.c
@@ -78,6 +78,7 @@ void gunzip_start(struct gunzip_state *state, void *src, int srclen)
 			fatal("inflateInit2 returned %d\n\r", r);
 	}
 
+	state->s.total_in = hdrlen;
 	state->s.next_in = src + hdrlen;
 	state->s.avail_in = srclen - hdrlen;
 }