diff --git a/source/src/tools.cpp b/source/src/tools.cpp
index ad44e121..ec09814e 100644
--- a/source/src/tools.cpp
+++ b/source/src/tools.cpp
@@ -45,7 +45,7 @@ mapstats *loadmapstats(const char *filename, bool getlayout)
     stream *f = opengzfile(filename, "rb");
     if(!f) return NULL;
     memset(&s.hdr, 0, sizeof(header));
-    if(f->read(&s.hdr, sizeof(header)-sizeof(int)*16-sizeof(char)*128)!=sizeof(header)-sizeof(int)*16-sizeof(char)*128 || (strncmp(s.hdr.head, "CUBE", 4) && strncmp(s.hdr.head, "ACMP",4))) { gzclose(f); return NULL; }
+    if(f->read(&s.hdr, sizeof(header)-sizeof(int)*16-sizeof(char)*128)!=sizeof(header)-sizeof(int)*16-sizeof(char)*128 || (strncmp(s.hdr.head, "CUBE", 4) && strncmp(s.hdr.head, "ACMP",4))) { delete f; return NULL; }
     lilswap(&s.hdr.version, 4);
     if(s.hdr.version>MAPVERSION || s.hdr.numents > MAXENTITIES || (s.hdr.version>=4 && f->read(&s.hdr.waterlevel, sizeof(int)*16)!=sizeof(int)*16)) { delete f; return NULL; }
     if(s.hdr.version>=7 && f->read(&s.hdr.mediareq, sizeof(char)*128)!=sizeof(char)*128) { delete f; return NULL; }