diff --git a/gpu-dawn/.github/workflows/ci.yml b/gpu-dawn/.github/workflows/ci.yml
index 86ed5ec1..e4471f42 100644
--- a/gpu-dawn/.github/workflows/ci.yml
+++ b/gpu-dawn/.github/workflows/ci.yml
@@ -15,6 +15,8 @@ jobs:
         run: |
           sudo apt install xz-utils
           sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.9.0-dev.2023+16b753549.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+      - name: Clone mach-glfw
+        run: git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: test
         run: zig build test && find zig-out/
   # TODO(build-system): enable windows CI here once gpu-dawn builds under Windows
@@ -48,6 +50,8 @@ jobs:
         run: |
           brew install xz
           sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.9.0-dev.2023+16b753549.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+      - name: Clone mach-glfw
+        run: git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: test
         run: zig build test && find zig-out/
         env:
diff --git a/gpu-dawn/.github/workflows/m1_ci.yml b/gpu-dawn/.github/workflows/m1_ci.yml
index 319477e2..cc349a1c 100644
--- a/gpu-dawn/.github/workflows/m1_ci.yml
+++ b/gpu-dawn/.github/workflows/m1_ci.yml
@@ -19,6 +19,8 @@ jobs:
       - name: Setup Zig
         run: |
           zig version
+      - name: Clone mach-glfw
+        run: git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: test
         run: zig build test && find zig-out/
         env:
diff --git a/gpu-dawn/build.zig b/gpu-dawn/build.zig
index 328da9e3..5d7c8637 100644
--- a/gpu-dawn/build.zig
+++ b/gpu-dawn/build.zig
@@ -7,12 +7,6 @@ pub fn build(b: *Builder) void {
     const mode = b.standardReleaseOptions();
     const target = b.standardTargetOptions(.{});
 
-    // TODO(build-system): remove dependency on GLFW (Dawn no longer requires it / we can
-    // eliminate it.)
-    if (!dirExists("libs/mach-glfw")) {
-        try gitClone(b.allocator, "https://github.com/hexops/mach-glfw", "libs/mach-glfw");
-    }
-
     const lib = b.addStaticLibrary("gpu", "src/main.zig");
     lib.setBuildMode(mode);
     lib.setTarget(target);