diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 8e6d3b4..1d0de55 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -7,8 +7,9 @@ on:
     branches: [ master ]
 
 jobs:
-  test:
+  windows-test:
     runs-on: windows-latest
+    continue-on-error: true
     strategy:
       matrix:
         ruby-version: ['2.7', '3.0']
@@ -20,10 +21,13 @@ jobs:
       with:
         ruby-version: ${{ matrix.ruby-version }}
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Run tests
+      run: bundle exec rake
     - name: Build gem
       run: bundle exec gem build salsa20.gemspec
     - name: Install gem
-      run: bundle exec gem install --verbose ./salsa20-*.gem ; cat D:/a/salsa20-ruby/salsa20-ruby/vendor/bundle/ruby/3.0.0/extensions/x64-mingw32/3.0.0/salsa20-0.1.3/gem_make.out ; exit 1
-      #; exit 0
-      #    - name: Print results
-      #run: cat D:/a/salsa20-ruby/salsa20-ruby/vendor/bundle/ruby/3.0.0/extensions/x64-mingw32/3.0.0/salsa20-0.1.3/gem_make.out
+      run: bundle exec gem install --verbose ./salsa20-*.gem
+      continue-on-error: true
+    - name: Print gem make log
+      run: cat D:/a/salsa20-ruby/salsa20-ruby/vendor/bundle/ruby/3.0.0/extensions/x64-mingw32/3.0.0/salsa20-0.1.3/gem_make.out
+      continue-on-error: true
diff --git a/ext/salsa20_ext/ecrypt-config.h b/ext/salsa20_ext/ecrypt-config.h
index d2f8f0d..1ac7dbc 100644
--- a/ext/salsa20_ext/ecrypt-config.h
+++ b/ext/salsa20_ext/ecrypt-config.h
@@ -283,8 +283,8 @@
 
 #ifdef _UI64_MAX
 
-#if (_UI64_MAX / 0xFFFFFFFFui64 > 0xFFFFFFFFui64)
 #ifndef I64T
+#if (_UI64_MAX / 0xFFFFFFFFui64 > 0xFFFFFFFFui64)
 #define I64T __int64
 #define U64C(v) (v##ui64)
 #endif