diff --git a/internal/fs/setflags_linux_test.go b/internal/fs/setflags_linux_test.go
index 7818146ac..089b7c615 100644
--- a/internal/fs/setflags_linux_test.go
+++ b/internal/fs/setflags_linux_test.go
@@ -59,9 +59,13 @@ func supportsNoatime(t *testing.T, f *os.File) bool {
 	err := unix.Fstatfs(int(f.Fd()), &fsinfo)
 	rtest.OK(t, err)
 
-	return fsinfo.Type == unix.BTRFS_SUPER_MAGIC ||
-		fsinfo.Type == unix.EXT2_SUPER_MAGIC ||
-		fsinfo.Type == unix.EXT3_SUPER_MAGIC ||
-		fsinfo.Type == unix.EXT4_SUPER_MAGIC ||
-		fsinfo.Type == unix.TMPFS_MAGIC
+	// The funky cast works around a compiler error on 32-bit archs:
+	// "unix.BTRFS_SUPER_MAGIC (untyped int constant 2435016766) overflows int32".
+	// https://github.com/golang/go/issues/52061
+	typ := int64(uint(fsinfo.Type))
+	return typ == unix.BTRFS_SUPER_MAGIC ||
+		typ == unix.EXT2_SUPER_MAGIC ||
+		typ == unix.EXT3_SUPER_MAGIC ||
+		typ == unix.EXT4_SUPER_MAGIC ||
+		typ == unix.TMPFS_MAGIC
 }