diff --git a/src/backend/distributed/Makefile b/src/backend/distributed/Makefile
index 6a26d1cb0..13ae016ef 100644
--- a/src/backend/distributed/Makefile
+++ b/src/backend/distributed/Makefile
@@ -20,7 +20,7 @@ SUBDIRS = . commands executor master planner relay test utils worker
 # That patsubst rule searches all directories listed in SUBDIRS for .c
 # files, and adds the corresponding .o files to OBJS
 OBJS += \
-	$(patsubst $(citus_abs_srcdir)/%.c,%.o,$(foreach dir,$(SUBDIRS), $(wildcard $(citus_abs_srcdir)/$(dir)/*.c)))
+	$(patsubst $(citus_abs_srcdir)/%.c,%.o,$(foreach dir,$(SUBDIRS), $(sort $(wildcard $(citus_abs_srcdir)/$(dir)/*.c))))
 
 # be explicit about the default target
 all: