diff --git a/.github/workflows/create-release-artifacts.yml b/.github/workflows/create-release-artifacts.yml
index 33156276..9baeeb59 100644
--- a/.github/workflows/create-release-artifacts.yml
+++ b/.github/workflows/create-release-artifacts.yml
@@ -39,7 +39,7 @@ jobs:
         shell: cmd
         run: |
           call .github\scripts\msvc-env.bat ${{ matrix.bits }}
-          cmake -S . -B build -G Ninja -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}"
+          cmake -S . -B build -G Ninja -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}" -DCMAKE_C_FLAGS="/nologo"
           cmake --build build -- -k 0
       - name: Package binaries
         working-directory: build
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 791013b9..2c957687 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -184,8 +184,8 @@ jobs:
         shell: cmd
         run: | # ASan seems to be broken on Windows, so we disable it.
           call .github\scripts\msvc-env.bat ${{ matrix.bits }}
-          cmake -S . -B build -G Ninja --preset develop -DSANITIZERS=OFF ^
-                -DTESTS_OS_NAME=${{ matrix.os }} -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}"
+          cmake -S . -B build -G Ninja --preset develop -DSANITIZERS=OFF -DTESTS_OS_NAME=${{ matrix.os }} ^
+                -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}" -DCMAKE_C_FLAGS="/nologo"
           cmake --build build -- -k 0
       - name: Package binaries
         working-directory: build