diff --git a/.github/workflows/validate-linux-binaries.yml b/.github/workflows/validate-linux-binaries.yml
index 0bb5e3ce7..5e1a00698 100644
--- a/.github/workflows/validate-linux-binaries.yml
+++ b/.github/workflows/validate-linux-binaries.yml
@@ -71,7 +71,7 @@ jobs:
         export TORCH_ONLY=${{ inputs.torchonly }}
         export TARGET_OS="linux"
         eval "$(conda shell.bash hook)"
-        printf '%s\n' ${{ needs.generate-release-matrix.outputs.matrix }} > release_matrix.json
+        printf '%s\n' ${{ toJson(needs.generate-release-matrix.outputs.matrix) }} > release_matrix.json
 
         # Special case PyPi installation package. And Install of PyPi package via poetry
         if [[ ${MATRIX_PACKAGE_TYPE} == "manywheel" && ${MATRIX_GPU_ARCH_VERSION} == "12.1" ]]; then