diff --git a/tools/ci_build/github/azure-pipelines/templates/build-linux-wasm-step.yml b/tools/ci_build/github/azure-pipelines/templates/build-linux-wasm-step.yml
index 56f6bd56eeed7..e664cf69dec76 100644
--- a/tools/ci_build/github/azure-pipelines/templates/build-linux-wasm-step.yml
+++ b/tools/ci_build/github/azure-pipelines/templates/build-linux-wasm-step.yml
@@ -67,9 +67,9 @@ steps:
         EM_DIR: '$(Build.SourcesDirectory)/cmake/external/emsdk/upstream/emscripten'
 
   - ${{if eq(parameters.WithCache, false)}}:
-    - task: PythonScript@0
-      displayName: '${{parameters.DisplayName}}'
-      inputs:
-        scriptPath: '$(Build.SourcesDirectory)/tools/ci_build/build.py'
-        arguments: ${{parameters.Arguments}}
-        workingDirectory: '$(Build.BinariesDirectory)'
+    - script: |
+        set -e -x
+        source $(Build.SourcesDirectory)/cmake/external/emsdk/emsdk_env.sh
+        cd '$(Build.BinariesDirectory)'
+        python3 '$(Build.SourcesDirectory)/tools/ci_build/build.py' ${{parameters.Arguments}}
+      displayName: ${{parameters.DisplayName}}
diff --git a/tools/ci_build/github/azure-pipelines/templates/linux-wasm-ci.yml b/tools/ci_build/github/azure-pipelines/templates/linux-wasm-ci.yml
index f81b1ddc8b93b..852d688b2dbb1 100644
--- a/tools/ci_build/github/azure-pipelines/templates/linux-wasm-ci.yml
+++ b/tools/ci_build/github/azure-pipelines/templates/linux-wasm-ci.yml
@@ -90,13 +90,20 @@ jobs:
       arguments: --new_dir $(Build.BinariesDirectory)/deps
       workingDirectory: $(Build.BinariesDirectory)
 
-  - script: |
-      set -ex
-      cd '$(Build.SourcesDirectory)/cmake/external/emsdk'
-      ./emsdk install 3.1.44 ccache-git-emscripten-64bit
-      ./emsdk activate 3.1.44 ccache-git-emscripten-64bit
-    displayName: 'emsdk install and activate ccache for emscripten'
-    condition: eq('${{ parameters.WithCache }}', 'true')
+  - ${{if eq(parameters.WithCache, true)}}:
+      - script: |
+          set -ex
+          cd '$(Build.SourcesDirectory)/cmake/external/emsdk'
+          ./emsdk install 3.1.44 ccache-git-emscripten-64bit
+          ./emsdk activate 3.1.44 ccache-git-emscripten-64bit
+        displayName: 'emsdk install and activate ccache for emscripten'
+  - ${{if eq(parameters.WithCache, false)}}:
+      - script: |
+          set -ex
+          cd '$(Build.SourcesDirectory)/cmake/external/emsdk'
+          ./emsdk install 3.1.44
+          ./emsdk activate 3.1.44
+        displayName: 'emsdk install and activate ccache for emscripten'
 
   - template: build-linux-wasm-step.yml
     parameters: