diff --git a/src/Make_morph.mak b/src/Make_morph.mak
index d326174..43414e7 100644
--- a/src/Make_morph.mak
+++ b/src/Make_morph.mak
@@ -103,6 +103,7 @@
 	tag.c							\
 	term.c							\
 	testing.c						\
+	textformat.c						\
 	textobject.c						\
 	textprop.c						\
 	time.c							\