diff --git a/tools/autotools/tsk_comparedir.cpp b/tools/autotools/tsk_comparedir.cpp
index 0dde7051754ac39b00997db50c9a0854c769c526..c1cf55040a36f48cd425e9f691b7e74c812145ee 100644
--- a/tools/autotools/tsk_comparedir.cpp
+++ b/tools/autotools/tsk_comparedir.cpp
@@ -408,7 +408,7 @@ main(int argc, char **argv1)
 
     tskCompareDir.setFileFilterFlags(TSK_FS_DIR_WALK_FLAG_ALLOC);
 
-	if (tskCompareDir.openImage(argc - OPTIND - 1, &argv[OPTIND], imgtype, ssize)) {
+    if (tskCompareDir.openImage(argc - OPTIND - 1, &argv[OPTIND], imgtype, ssize)) {
         tsk_error_print(stderr);
         exit(1);
     }