diff --git a/Makefile b/Makefile
index 001126931d..ef8de4a754 100644
--- a/Makefile
+++ b/Makefile
@@ -2152,14 +2152,16 @@ po/build/locale/%/LC_MESSAGES/git.mo: po/%.po
 FIND_SOURCE_FILES = ( \
 	git ls-files \
 		'*.[hcS]' \
+		'*.sh' \
 		':!*[tp][0-9][0-9][0-9][0-9]*' \
 		2>/dev/null || \
 	$(FIND) . \
 		\( -name .git -type d -prune \) \
-		-o \( -name '[tp][0-9][0-9][0-9][0-9]' -type d -prune \) \
+		-o \( -name '[tp][0-9][0-9][0-9][0-9]*' -prune \) \
 		-o \( -name build -type d -prune \) \
 		-o \( -name 'trash*' -type d -prune \) \
 		-o \( -name '*.[hcS]' -type f -print \) \
+		-o \( -name '*.sh' -type f -print \) \
 	)
 
 $(ETAGS_TARGET): FORCE