diff --git a/gmid.c b/gmid.c
index 227c60b..b72f571 100644
--- a/gmid.c
+++ b/gmid.c
@@ -162,6 +162,24 @@ starts_with(const char *str, const char *prefix)
 	return 1;
 }
 
+int
+ends_with(const char *str, const char *sufx)
+{
+	size_t i, j;
+
+	i = strlen(str);
+	j = strlen(sufx);
+
+	if (j > i)
+		return 0;
+
+	i -= j;
+	for (j = 0; str[i] != '\0'; i++, j++)
+		if (str[i] != sufx[j])
+			return 0;
+	return 1;
+}
+
 ssize_t
 filesize(int fd)
 {
diff --git a/gmid.h b/gmid.h
index e647002..488ade6 100644
--- a/gmid.h
+++ b/gmid.h
@@ -150,6 +150,7 @@ void log_request(struct client*, char*, size_t);
 
 void		 sig_handler(int);
 int		 starts_with(const char*, const char*);
+int		 ends_with(const char*, const char*);
 ssize_t		 filesize(int);
 char		*absolutify_path(const char*);
 void		 yyerror(const char*);