diff --git a/src/backend/columnar/Makefile b/src/backend/columnar/Makefile
index 3f0933add..25cfbe2fa 100644
--- a/src/backend/columnar/Makefile
+++ b/src/backend/columnar/Makefile
@@ -1,10 +1,9 @@
 citus_subdir = src/backend/columnar
 safestringlib_srcdir = $(citus_abs_top_srcdir)/vendor/safestringlib
-columnar_srcdir = $(citus_subdir)/src/backend/columnar
 SUBDIRS = . safeclib
 SUBDIRS +=
 OBJS += \
-	$(patsubst $(columnar_srcdir)/%.c,%.o,$(foreach dir,$(SUBDIRS), $(sort $(wildcard $(columnar_srcdir)/$(dir)/*.c))))
+	$(patsubst $(citus_subdir)/%.c,%.o,$(foreach dir,$(SUBDIRS), $(sort $(wildcard $(citus_subdir)/$(dir)/*.c))))
 
 MODULE_big = columnar