diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index f2cc245..55bfb5d 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -1127,6 +1127,7 @@
         bytes_read = fread(buf, 1, data_size, fp);
     } else {
         fclose(fp);
+        Py_DECREF(raw_data);
         PyErr_Format(ZipImportError, "can't read Zip file: %R", archive);
         return NULL;
     }