diff --git a/src/makeBaseApp/top/Makefile b/src/makeBaseApp/top/Makefile
index 5749581bd..9577d4132 100644
--- a/src/makeBaseApp/top/Makefile
+++ b/src/makeBaseApp/top/Makefile
@@ -1,9 +1,9 @@
 #Makefile at top of application tree
 TOP = .
 include $(TOP)/configure/CONFIG
-DIRS += configure
-DIRS += $(wildcard *App)
-DIRS += $(wildcard *app)
-DIRS += $(wildcard iocBoot)
-DIRS += $(wildcard iocboot)
+DIRS := $(DIRS) $(filter-out $(DIRS), configure)
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *App))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *app))
+DIRS := $(DIRS) $(filter-out $(DIRS), iocBoot)
+DIRS := $(DIRS) $(filter-out $(DIRS), iocboot)
 include $(TOP)/configure/RULES_TOP
diff --git a/src/makeBaseApp/top/exampleApp/Makefile b/src/makeBaseApp/top/exampleApp/Makefile
index f17aa9d47..10e0126aa 100644
--- a/src/makeBaseApp/top/exampleApp/Makefile
+++ b/src/makeBaseApp/top/exampleApp/Makefile
@@ -1,8 +1,8 @@
 TOP = ..
 include $(TOP)/configure/CONFIG
-DIRS += $(wildcard *src*)
-DIRS += $(wildcard *Src*)
-DIRS += $(wildcard *db*)
-DIRS += $(wildcard *Db*)
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *src*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *Src*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *db*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *Db*))
 include $(TOP)/configure/RULES_DIRS
 
diff --git a/src/makeBaseApp/top/simpleApp/Makefile b/src/makeBaseApp/top/simpleApp/Makefile
index 60f5ad48e..ab15bfb1c 100644
--- a/src/makeBaseApp/top/simpleApp/Makefile
+++ b/src/makeBaseApp/top/simpleApp/Makefile
@@ -1,7 +1,7 @@
 TOP = ..
 include $(TOP)/configure/CONFIG
-DIRS += $(wildcard *src*)
-DIRS += $(wildcard *Src*)
-DIRS += $(wildcard *db*)
-DIRS += $(wildcard *Db*)
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *src*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *Src*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *db*))
+DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *Db*))
 include $(TOP)/configure/RULES_DIRS