diff --git a/config.mk b/config.mk
index 2157537c823056729fef0aae65cffabfe1588b15..00805bdc5b3d9689b069c86c3bf5e67916e6d35a 100644
--- a/config.mk
+++ b/config.mk
@@ -18,6 +18,8 @@ PLATFORM_LDFLAGS :=
 LDFLAGS :=
 LDFLAGS_FINAL :=
 OBJCOPYFLAGS :=
+# clear VENDOR for tcsh
+VENDOR :=
 #########################################################################
 
 ARCH := $(CONFIG_SYS_ARCH:"%"=%)