diff --git a/pkg/dynamic_modules/test/runner/ddc.dart b/pkg/dynamic_modules/test/runner/ddc.dart
index 98e520a5798..2e80e86319e 100644
--- a/pkg/dynamic_modules/test/runner/ddc.dart
+++ b/pkg/dynamic_modules/test/runner/ddc.dart
@@ -68,12 +68,12 @@ class DdcExecutor implements TargetExecutor {
       '--no-summarize',
       '--no-source-map',
       '--multi-root',
-      sourceDir.resolve('../../').toFilePath(),
+      '${sourceDir.resolve('../../')}',
       '--multi-root-scheme',
       rootScheme,
       '$rootScheme:/data/$testName/$source',
       '--dart-sdk-summary',
-      ddcSdkOutline.toFilePath(),
+      '$ddcSdkOutline',
       // Note: this needs to change if we ever intend to support packages within
       // the dynamic loading tests themselves
       '--packages=${repoRoot.toFilePath()}/.dart_tool/package_config.json',
@@ -100,12 +100,12 @@ class DdcExecutor implements TargetExecutor {
       '--target',
       'ddc',
       '--multi-root',
-      sourceDir.resolve('../../').toFilePath(),
+      '${sourceDir.resolve('../../')}',
       '--multi-root-scheme',
       rootScheme,
       '--packages-file=${repoRoot.toFilePath()}/.dart_tool/package_config.json',
       '--dart-sdk-summary',
-      ddcSdkOutline.toFilePath(),
+      '$ddcSdkOutline',
       '--source',
       '$rootScheme:/data/$testName/$source',
       '--output',