diff --git a/.github/workflows/brickEmu_CI.yml b/.github/workflows/brickEmu_CI.yml
index 1a5cec8..6b1aba0 100644
--- a/.github/workflows/brickEmu_CI.yml
+++ b/.github/workflows/brickEmu_CI.yml
@@ -35,12 +35,12 @@ jobs:
         gcc --version
         make
     - name: Run Valgrind Memory Checker on emu
-      if:   ${{ env.RUN_VALGRIND }}
+      if:   ${{ env.RUN_VALGRIND == 'true' }}
       uses: Ximaz/valgrind-action@1.2.1
       with:
         binary_path: src/emu
     - name: Run Valgrind Memory Checker on brickEmu ir-server
-      if:   ${{ env.RUN_VALGRIND }}
+      if:   ${{ env.RUN_VALGRIND == 'true' }}
       uses: Ximaz/valgrind-action@1.2.1
       with:
         binary_path: src/ir-server
@@ -55,12 +55,12 @@ jobs:
         cd brickos_bibo
         make
     - name: Run Valgrind Memory Checker on firmdl
-      if:   ${{ env.RUN_VALGRIND }}
+      if:   ${{ env.RUN_VALGRIND == 'true' }}
       uses: Ximaz/valgrind-action@1.2.1
       with:
         binary_path: brickos_bibo/util/firmdl
     - name: Run Valgrind Memory Checker on dll
-      if:   ${{ env.RUN_VALGRIND }}
+      if:   ${{ env.RUN_VALGRIND == 'true' }}
       uses: Ximaz/valgrind-action@1.2.1
       with:
         binary_path: brickos_bibo/util/dll