diff --git a/.github/workflows/ssc335_images.yml b/.github/workflows/ssc335_images.yml
index 33d98a04..4ff6cd78 100644
--- a/.github/workflows/ssc335_images.yml
+++ b/.github/workflows/ssc335_images.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   build_core:
     name: OpenIPC v2.1 for SSC335
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
 
diff --git a/.github/workflows/ssc337_images.yml b/.github/workflows/ssc337_images.yml
index 863c668f..c084e0eb 100644
--- a/.github/workflows/ssc337_images.yml
+++ b/.github/workflows/ssc337_images.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   build_core:
     name: OpenIPC v2.1 for SSC337
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
 
diff --git a/building.sh b/building.sh
index 9dc11760..5cccbbe9 100755
--- a/building.sh
+++ b/building.sh
@@ -311,6 +311,7 @@ xm550() {
 # hi3516dv300                   # testind..
 #
 hi3536dv100                     # OpenIPC
+#
 #######
 #
 # nt98562                       # OpenIPC