--- wv-1.2.9/wvRTF.c.orig	2013-12-12 17:03:41.635612853 -0500
+++ wv-1.2.9/wvRTF.c	2013-12-12 17:04:05.528003832 -0500
@@ -192,7 +192,7 @@
     rtf_output_char ('{');
 
     /* font color */
-    rtf_output (rtfColors[ud->cCol]);
+    rtf_output ("%s", rtfColors[ud->cCol]);
 
     /* font face */
     rtf_output ("\\f%d", ud->cFont);