diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4922eff..f45523e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,10 +1,10 @@
 name: Cross-platform tests
 
 on:
+  pull_request:
   push:
     branches:
       - 'master'
-      - 'feature-msvc'
 
 jobs:
   test-with-setup-ocaml:
diff --git a/test/conv/dune b/test/conv/dune
index 0d9e9ee..f14e5c7 100644
--- a/test/conv/dune
+++ b/test/conv/dune
@@ -5,5 +5,7 @@
 
 (rule
  (alias runtest)
+ (enabled_if
+  (= ${os_type} "Unix"))
  (action
   (run ./test_conv.exe --color=always)))