diff --git a/Build/steps.yml b/Build/steps.yml
index 8901e4cdc..226c482a3 100644
--- a/Build/steps.yml
+++ b/Build/steps.yml
@@ -90,6 +90,11 @@ steps:
   - powershell: ./make.ps1 test-all
     displayName: Test
 
+    # 32-bit tests on Windows only
+  - ${{ if eq(parameters.os, 'Windows') }}:
+    - powershell: ./make.ps1 -frameworks net46 -platform x86 test-all
+      displayName: Test 32-bit
+
   - task: PublishTestResults@2
     displayName: Publish Test Results
     inputs: