1 files changed, 2 insertions, 2 deletions
diff --git a/packages/sol-cov/src/artifact_adapters/sol_compiler_artifact_adapter.ts b/packages/sol-cov/src/artifact_adapters/sol_compiler_artifact_adapter.ts
index 220a9f98c..8e03bf7fd 100644
--- a/packages/sol-cov/src/artifact_adapters/sol_compiler_artifact_adapter.ts
+++ b/packages/sol-cov/src/artifact_adapters/sol_compiler_artifact_adapter.ts
@@ -12,8 +12,8 @@ import { AbstractArtifactAdapter } from './abstract_artifact_adapter';
 const CONFIG_FILE = 'compiler.json';
 
 export class SolCompilerArtifactAdapter extends AbstractArtifactAdapter {
-    private _artifactsPath: string;
-    private _sourcesPath: string;
+    private readonly _artifactsPath: string;
+    private readonly _sourcesPath: string;
     constructor(artifactsPath?: string, sourcesPath?: string) {
         super();
         const config: CompilerOptions = fs.existsSync(CONFIG_FILE)