1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libz/gzread.c b/lib/libz/gzread.c
index fecc36b6988e..5c37babe4ec1 100644
--- a/lib/libz/gzread.c
+++ b/lib/libz/gzread.c
@@ -3,6 +3,8 @@
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
+/* $FreeBSD$ */
+
 #include "gzguts.h"
 #include <unistd.h>
 
@@ -56,7 +58,8 @@ local int gz_avail(state)
     if (state->err != Z_OK)
         return -1;
     if (state->eof == 0) {
-        if (gz_load(state, state->in, state->size, &(strm->avail_in)) == -1)
+        if (gz_load(state, state->in, state->size,
+                (unsigned *)&(strm->avail_in)) == -1)
             return -1;
         strm->next_in = state->in;
     }