diff --git a/.vsts-ci.Linux.yml b/.vsts-ci.Linux.yml
index 18e49964..2563255e 100644
--- a/.vsts-ci.Linux.yml
+++ b/.vsts-ci.Linux.yml
@@ -26,6 +26,7 @@ jobs:
   - script: |
       source /emsdk/emsdk_env.sh
       cd src/CalcManager
+      chmod +x build.sh
       ./build.sh
 
     displayName: 'Build Wasm CalcManager'
diff --git a/src/CalcManager/build.sh b/src/CalcManager/build.sh
old mode 100644
new mode 100755