diff --git a/src/w_wad.c b/src/w_wad.c
index 54ae7fb26..7fd7ac125 100644
--- a/src/w_wad.c
+++ b/src/w_wad.c
@@ -1319,8 +1319,8 @@ size_t W_ReadLumpHeaderPwad(UINT16 wad, UINT16 lump, void *dest, size_t size, si
 				{
 					size = 0;
 					zerr(zErr);
-					(void)inflateEnd(&strm);
 				}
+				(void)inflateEnd(&strm);
 			}
 			else
 			{