diff --git a/packages/hardhat-core/src/internal/artifacts.ts b/packages/hardhat-core/src/internal/artifacts.ts
index 8cf579deeb..0ddee3a388 100644
--- a/packages/hardhat-core/src/internal/artifacts.ts
+++ b/packages/hardhat-core/src/internal/artifacts.ts
@@ -210,6 +210,7 @@ export class Artifacts implements IArtifacts {
     const buildInfoName = uuid();
 
     const buildInfo = this._createBuildInfo(
+      buildInfoName,
       solcVersion,
       solcLongVersion,
       input,
@@ -296,12 +297,14 @@ export class Artifacts implements IArtifacts {
   }
 
   private _createBuildInfo(
+    id: string,
     solcVersion: string,
     solcLongVersion: string,
     input: CompilerInput,
     output: CompilerOutput
   ): BuildInfo {
     return {
+      id,
       _format: BUILD_INFO_FORMAT_VERSION,
       solcVersion,
       solcLongVersion,
diff --git a/packages/hardhat-core/src/types/artifacts.ts b/packages/hardhat-core/src/types/artifacts.ts
index 630c4afa21..554ef1f8c1 100644
--- a/packages/hardhat-core/src/types/artifacts.ts
+++ b/packages/hardhat-core/src/types/artifacts.ts
@@ -131,6 +131,7 @@ export interface DebugFile {
  * all of its output.
  */
 export interface BuildInfo {
+  id: string;
   _format: string;
   solcVersion: string;
   solcLongVersion: string;