diff --git a/fix-whitespace.yaml b/fix-whitespace.yaml
index d5eb572ec62..bb4081ea762 100644
--- a/fix-whitespace.yaml
+++ b/fix-whitespace.yaml
@@ -94,6 +94,8 @@ excluded-files:
   - Cabal-tests/tests/ParserTests/warnings/tab.cabal
   - Cabal-tests/tests/ParserTests/warnings/utf8.cabal
   - cabal-testsuite/PackageTests/Regression/T8507/pkg.cabal
+  - cabal-testsuite/PackageTests/UntrimmedImport/trailing-space.project
+  - cabal-testsuite/PackageTests/UntrimmedImport/tabs-and-spaces.project
 
   # These also contain tabs that affect the golden value:
   # Could be removed from exceptions, but then the tab warning