diff --git a/testing/btest/language/expire_multiple.test b/testing/btest/language/expire_multiple.test
index 2293873e59..1e4aaa0975 100644
--- a/testing/btest/language/expire_multiple.test
+++ b/testing/btest/language/expire_multiple.test
@@ -1,5 +1,5 @@
 # @TEST-EXEC-FAIL: bro -b %INPUT >output 2>&1
-# @TEST-EXEC: btest-diff output
+# @TEST-EXEC: TEST_DIFF_CANONIFIER=$SCRIPTS/diff-remove-abspath btest-diff output
 
 global s: set[string] &create_expire=1secs &read_expire=1secs;