diff --git a/app/app-prime-modbus/make.sh b/app/app-prime-modbus/make.sh
index 37699a8..9a76897 100755
--- a/app/app-prime-modbus/make.sh
+++ b/app/app-prime-modbus/make.sh
@@ -12,7 +12,7 @@ CP_DIR_LIST="/nfs/prime_oven/ ../release/"
 
 if [ ${CP_DIR} ]
 then
-  CP_DIR_LIST+=${CP_DIR}
+  CP_DIR_LIST="${CP_DIR_LIST} ${CP_DIR}"
 fi
 
 for DIR in ${CP_DIR_LIST}
diff --git a/app/gui/make.sh b/app/gui/make.sh
index 4760a75..f2d0c23 100755
--- a/app/gui/make.sh
+++ b/app/gui/make.sh
@@ -8,9 +8,9 @@ then
 fi
 
 CP_DIR_LIST="/nfs/prime_oven/ ../release/"
-if [ -z "$CP_DIR" ]
+if [ "$CP_DIR" ]
 then
-  CP_DIR_LIST+=${CP_DIR}
+  CP_DIR_LIST="${CP_DIR_LIST} ${CP_DIR}"
 fi
 
 image_filename=${TARGET}
diff --git a/app/modbus-data-viewer/release.sh b/app/modbus-data-viewer/release.sh
index f73165a..6834487 100755
--- a/app/modbus-data-viewer/release.sh
+++ b/app/modbus-data-viewer/release.sh
@@ -17,11 +17,11 @@ fi
 cp bin/linux_arm/service-web release/service-web
 cp -rf src/service-web/templates release/
 
-CP_DIR_LIST=/nfs/prime_oven
+CP_DIR_LIST="/nfs/prime_oven/ ../release/"
 
 if [ $CP_DIR ]
 then
-  CP_DIR_LIST+=$CP_DIR
+  CP_DIR_LIST="${CP_DIR_LIST} ${CP_DIR}"
 fi
 
 for DEST_DIR in ${CP_DIR_LIST}
diff --git a/app/superdaemon/make.sh b/app/superdaemon/make.sh
index 9eb1a71..8fb65ce 100755
--- a/app/superdaemon/make.sh
+++ b/app/superdaemon/make.sh
@@ -12,7 +12,7 @@ CP_DIR_LIST="/nfs/prime_oven ../release/"
 
 if [ ${CP_DIR} ]
 then
-  CP_DIR_LIST+=${CP_DIR}
+  CP_DIR_LIST="${CP_DIR_LIST} ${CP_DIR}"
 fi
 
 for DIR in ${CP_DIR_LIST}