diff --git a/src/cc65/make/watcom.mak b/src/cc65/make/watcom.mak
index 98e602932..16d1098cd 100644
--- a/src/cc65/make/watcom.mak
+++ b/src/cc65/make/watcom.mak
@@ -139,7 +139,6 @@ FILE goto.obj
 FILE ident.obj
 FILE incpath.obj
 FILE input.obj
-FILE io.obj
 FILE litpool.obj
 FILE locals.obj
 FILE loop.obj