--- a/x.c	2017-09-30 15:46:51.713848500 -0400
+++ b/x.c	2017-10-01 16:59:13.786729400 -0400
@@ -1100,8 +1100,13 @@
 
 			glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
 
-			f = frclen;
-			frclen++;
+			if (!glyphidx) {
+				XftFontClose(xw.dpy, frc[frclen].font);
+				frc[frclen].unicodep = 0;
+			} else {
+				f = frclen;
+				frclen++;
+			}
 
 			FcPatternDestroy(fcpattern);
 			FcCharSetDestroy(fccharset);