diff --git a/python-deepdiff.spec b/python-deepdiff.spec
index 26677c1..bee5298 100644
--- a/python-deepdiff.spec
+++ b/python-deepdiff.spec
@@ -76,7 +76,7 @@ sed -i '1{/env python/d}' deepdiff/deephash.py deepdiff/diff.py deepdiff/search.
 # we don't have the (optional) requirement CleverCSV for csv diffing
 donttest="(TestCommands and (csv or group_by)) or (test_load_path_content and csv) or (test_polars)"
 # failure on Python 3.13 https://github.com/seperman/deepdiff/issues/474
-donttest=" or (TestCommands and test_diff_command and t1_corrupt)"
+donttest+=" or (TestCommands and test_diff_command and t1_corrupt)"
 %pytest -k "not ($donttest)"
 
 %post