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-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index b829916916dc..517589acf8fd 100644
--- a/Makefile
+++ b/Makefile
@@ -219,7 +219,7 @@ _CAN_USE_META_MODE?= yes
.if !defined(_CAN_USE_META_MODE)
_MAKE+= MK_META_MODE=no
.unexport META_MODE
-.elif ${MK_META_MODE} == "yes"
+.elif defined(MK_META_MODE) && ${MK_META_MODE} == "yes"
.if !exists(/dev/filemon) && !defined(NO_FILEMON) && !make(showconfig)
# Require filemon be loaded to provide a working incremental build
.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded. \