diff --git a/Utilitaires/Makefile b/Utilitaires/Makefile
index 1d3bd13..c1a466c 100644
--- a/Utilitaires/Makefile
+++ b/Utilitaires/Makefile
@@ -38,6 +38,10 @@ test : $(CSL_FILE) \
 		$(VALIDATION_FILE)
 	echo "============="
 
+test-compact: test
+	dwdiff -3 $(OUTPUT_FILE) $(VALIDATION_FILE) | sort | uniq
+
+
 validation-prov: $(VALIDATION_PROV_FILE)
 	$(HTML-VIEWER) $(VALIDATION_PROV_FILE)