--- singularity-2.0/src/image.c~
+++ singularity-2.0/src/image.c
@@ -65,9 +65,9 @@
         fseek(image_fp, 1024 * 1024, SEEK_CUR);
     }
     fprintf(image_fp, "0");
-    fclose(image_fp);
 
-    chmod(image, 0755);
+    fchmod(fileno(image_fp), 0755);
+    fclose(image_fp);
 
     return(0);
 }