1 files changed, 1 insertions, 1 deletions

diff --git a/src/Makefile.in b/src/Makefile.in
index 4206646f418..1e00ed1ad5a 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -907,7 +907,7 @@ relock:
 
 /* Arrange to make a tags table in ../lisp, and another in this dir
    which includes ../lisp/TAGS by reference.  */
-ctagsfiles = [a-zA-Z]*.h [a-zA-Z]*.c
+ctagsfiles = [a-zA-Z]*.[hc]
 lisptagsfiles = ../lisp/[a-zA-Z]*.el ../lisp/term/[a-zA-Z]*.el
 TAGS: $(ctagsfiles)
         ../lib-src/etags --include=../lisp/TAGS $(ctagsfiles)