diff --git a/src/cdogs/cwolfmap/zip/zip.c b/src/cdogs/cwolfmap/zip/zip.c
index b50e2f1d7..4e26ad66a 100644
--- a/src/cdogs/cwolfmap/zip/zip.c
+++ b/src/cdogs/cwolfmap/zip/zip.c
@@ -1673,7 +1673,7 @@ ssize_t zip_stream_copy(struct zip_t *zip, void **buf, size_t *bufsize) {
     *bufsize = n;
   }
 
-  *buf = calloc(sizeof(unsigned char), n);
+  *buf = calloc(n, sizeof(unsigned char));
   memcpy(*buf, zip->archive.m_pState->m_pMem, n);
 
   return (ssize_t)n;