Index: tools/src/parsers/test/test.sh
--- tools/src/parsers/test/test.sh.orig
+++ tools/src/parsers/test/test.sh
@@ -8,7 +8,7 @@ COMPARE="../../hfst-compare --quiet"
 HFST_FORMAT="../../hfst-format" # optional
 
 # other tools needed
-DIFF="diff --ignore-blank-lines"
+DIFF="diff"
 REMOVE="rm -f"
 GREP="grep"
 CAT="cat"
