diff --git a/Tests/CMakeTests/CheckSourceTreeTest.cmake.in b/Tests/CMakeTests/CheckSourceTreeTest.cmake.in
index 59b28904d..33fe5f3f8 100644
--- a/Tests/CMakeTests/CheckSourceTreeTest.cmake.in
+++ b/Tests/CMakeTests/CheckSourceTreeTest.cmake.in
@@ -268,12 +268,12 @@ if(NOT ov STREQUAL "")
 
     if(consider)
       if(is_git_checkout)
-        if(line MATCHES "^#[ \t]*modified:")
+        if(line MATCHES "^#?[ \t]*modified:")
           message("   locally modified file detected...")
           set(modifications 1)
         endif()
 
-        if(line MATCHES "^# Untracked")
+        if(line MATCHES "^(# )?Untracked")
           message("   locally non-added file/directory detected...")
           set(nonadditions 1)
         endif()