diff --git a/widget/src/os2/Makefile.in b/widget/src/os2/Makefile.in
index 858d93b7c5d..1eaf073cb24 100644
--- a/widget/src/os2/Makefile.in
+++ b/widget/src/os2/Makefile.in
@@ -67,6 +67,7 @@ REQUIRES	= gfx \
 		  content \
 		  imglib2 \
 		  unicharutil \
+		  layout \
 		  $(NULL)
 
 ifdef BUILD_STATIC_LIBS