diff --git a/internal/agentupdate/coverage_test.go b/internal/agentupdate/coverage_test.go
index 8abf3924e3..1215785ded 100644
--- a/internal/agentupdate/coverage_test.go
+++ b/internal/agentupdate/coverage_test.go
@@ -168,21 +168,6 @@ func TestRunDownloadedBinarySelfTestPropagatesFailureWithoutTokenArg(t *testing.
 	}
 }
 
-func TestRestartProcess(t *testing.T) {
-	orig := execFn
-	t.Cleanup(func() { execFn = orig })
-
-	execFn = func(string, []string, []string) error { return nil }
-	if err := restartProcess("/bin/true"); err != nil {
-		t.Fatalf("expected nil error, got %v", err)
-	}
-
-	execFn = func(string, []string, []string) error { return errors.New("boom") }
-	if err := restartProcess("/bin/false"); err == nil {
-		t.Fatalf("expected error")
-	}
-}
-
 func TestDetermineArchOverrides(t *testing.T) {
 	origOS, origArch, origUname := runtimeGOOS, runtimeGOARCH, unameCommand
 	t.Cleanup(func() {
diff --git a/internal/agentupdate/restart_unix_test.go b/internal/agentupdate/restart_unix_test.go
new file mode 100644
index 0000000000..d74f1d0092
--- /dev/null
+++ b/internal/agentupdate/restart_unix_test.go
@@ -0,0 +1,23 @@
+//go:build !windows
+
+package agentupdate
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestRestartProcess(t *testing.T) {
+	orig := execFn
+	t.Cleanup(func() { execFn = orig })
+
+	execFn = func(string, []string, []string) error { return nil }
+	if err := restartProcess("/bin/true"); err != nil {
+		t.Fatalf("expected nil error, got %v", err)
+	}
+
+	execFn = func(string, []string, []string) error { return errors.New("boom") }
+	if err := restartProcess("/bin/false"); err == nil {
+		t.Fatal("expected error")
+	}
+}