diff --git a/make/gettext.mk b/make/gettext.mk
index 413b4dd9..184b7ef0 100644
--- a/make/gettext.mk
+++ b/make/gettext.mk
@@ -11,8 +11,9 @@ GETTEXT_POT                 ?= $(wildcard *.pot)
 GETTEXT_PO                  ?= $(patsubst %.pot,%.po,$(GETTEXT_POT))
 GETTEXT_MO                  ?= $(patsubst %.po,%.mo,$(GETTEXT_PO))
 GETTEXT_INPUT_DIRS          ?= $(wildcard $(TOPDIR)/tools $(TOPDIR)/src $(TOPDIR)/conf)
+GETTEXT_INPUT_EXTS          ?= php cpp conf
 GETTEXT_INPUT_FILES         ?= $(foreach d,$(GETTEXT_INPUT_DIRS),\
-	$(shell find $d -name '*.php' -o -name '*.cpp' -o -name '*.conf'))
+	$(shell find $d -name translate-me $(foreach ext,$(GETTEXT_INPUT_EXTS),-o -name '*.$(ext)')))
 GETTEXT_KEYWORDS            ?= htr ehtr $(GETTEXT_EXTRA_KEYWORDS)
 GETTEXT_LINKS               ?= LC_MESSAGES