diff --git a/reduce-font.c b/reduce-font.c
index f1a7d4b..bd6439d 100644
--- a/reduce-font.c
+++ b/reduce-font.c
@@ -165,7 +165,7 @@ main (int argc, char **argv)
                     else if (strncmp (buf, "STARTCHAR ", 10) == 0)
                         header = 0;
                     else
-                        fprintf (stdout, buf);
+                        fprintf (stdout, "%s", buf);
                 }
                 
                 if (!header)