diff --git a/src/path/filepath/path_test.go b/src/path/filepath/path_test.go
index ed3990859bf..c96a758c695 100644
--- a/src/path/filepath/path_test.go
+++ b/src/path/filepath/path_test.go
@@ -1403,6 +1403,9 @@ func TestAbs(t *testing.T) {
 		}
 	}
 
+	// Make sure the global absTests slice is not
+	// modified by multiple invocations of TestAbs.
+	tests := absTests
 	if runtime.GOOS == "windows" {
 		vol := filepath.VolumeName(root)
 		var extra []string
@@ -1413,7 +1416,7 @@ func TestAbs(t *testing.T) {
 			path = vol + path
 			extra = append(extra, path)
 		}
-		absTests = append(absTests, extra...)
+		tests = append(slices.Clip(tests), extra...)
 	}
 
 	err = os.Chdir(absTestDirs[0])
@@ -1421,7 +1424,7 @@ func TestAbs(t *testing.T) {
 		t.Fatal("chdir failed: ", err)
 	}
 
-	for _, path := range absTests {
+	for _, path := range tests {
 		path = strings.ReplaceAll(path, "$", root)
 		info, err := os.Stat(path)
 		if err != nil {