diff --git a/layout/html/forms/src/Makefile.in b/layout/html/forms/src/Makefile.in
index bd04896a9539..a17b9d2cc21c 100644
--- a/layout/html/forms/src/Makefile.in
+++ b/layout/html/forms/src/Makefile.in
@@ -28,7 +28,7 @@ include $(DEPTH)/config/autoconf.mk
 
 MODULE		= layout
 LIBRARY_NAME	= gkhtmlforms_s
-REQUIRES	= xpcom string locale widget view dom js htmlparser necko webshell caps editor intl uconv exthandler mimetype txmgr xuldoc gfx2 imglib2 accessibility xpconnect
+REQUIRES	= xpcom string locale widget view dom js htmlparser necko webshell caps editor intl uconv exthandler mimetype txmgr xuldoc gfx2 imglib2 accessibility xpconnect unicharutil
 
 CPPSRCS		= \
 		nsButtonFrameRenderer.cpp \