diff --git a/testing/btest/core/load-pkg.bro b/testing/btest/core/load-pkg.bro
index 907dde78ce..c7aa27fd86 100644
--- a/testing/btest/core/load-pkg.bro
+++ b/testing/btest/core/load-pkg.bro
@@ -2,6 +2,6 @@
 # @TEST-EXEC: echo "@load foo/test.bro" >foo/__load__.bro
 # @TEST-EXEC: cp %INPUT foo/test.bro
 # @TEST-EXEC: bro -l foo >output 2>&1
-# @TEST-EXEC: btest-diff output
+# @TEST-EXEC: TEST_DIFF_CANONIFIER=$SCRIPTS/diff-remove-abspath btest-diff output
 
 print "Foo loaded";