diff --git a/po/Makefile b/po/Makefile
index a180b4d..450f500 100644
--- a/po/Makefile
+++ b/po/Makefile
@@ -32,7 +32,7 @@ update-po: ${PROJECT}.pot
 %/LC_MESSAGES/${PROJECT}.mo: %.po
 	@mkdir -p $(@D)
 	$(ECHO) msgfmt $(shell echo $< | sed 's/\.po//')
-	$(QUIET)msgfmt $< -o $@ -f
+	$(QUIET)msgfmt $< -o $@ -f -c
 
 install: ${MOS}
 	$(ECHO) installing translations