diff --git a/drd/tests/filter_stderr b/drd/tests/filter_stderr
index 61c4f97f9..b3e7058a8 100755
--- a/drd/tests/filter_stderr
+++ b/drd/tests/filter_stderr
@@ -21,6 +21,7 @@ sed \
 -e "s:(within /lib[0-9]*/ld-[0-9.]*\.so):(within ld-?.?.so):" \
 -e "s/was held during [0-9][0-9]*/was held during .../" \
 -e "s/ (\([a-zA-Z_]*\.c\):[0-9]*)/ (\1:?)/" \
+-e "s/ (\([a-zA-Z_]*\.h\):[0-9]*)/ (\1:?)/" \
 -e "s/ (\([a-zA-Z_]*\.cpp\):[0-9]*)/ (\1:?)/" |
 
 # Anonymise addresses