diff --git a/.github/workflows/build-all-matrix.yaml b/.github/workflows/build-all-matrix.yaml
index 23c7e335..6eb7b2c2 100644
--- a/.github/workflows/build-all-matrix.yaml
+++ b/.github/workflows/build-all-matrix.yaml
@@ -26,7 +26,7 @@ env: # Global environment, passed to all jobs & all steps
   
   # GHA runner configuration. See bash/json-matrix.sh for more details.
   CI_RUNNER_LK_CONTAINERS_ARM64: "ARM64" # Use a self-hosted runner with the "ARM64" tag for the ARM64 builds of LK containers
-  CI_RUNNER_KERNEL_AMD64: "X86" # Use a self-hosted runner with the "X86" tag for the AMD64 kernel builds
+  CI_RUNNER_KERNEL_AMD64: "X64" # Use a self-hosted runner with the "X86" tag for the AMD64 kernel builds
   CI_RUNNER_KERNEL_ARM64: "ARM64" # Use a self-hosted runner with the "ARM64" tag for the ARM64 kernel builds