diff --git a/packages/coverage-istanbul/src/provider.ts b/packages/coverage-istanbul/src/provider.ts
index ba29a35b6080..7eafa3d09afc 100644
--- a/packages/coverage-istanbul/src/provider.ts
+++ b/packages/coverage-istanbul/src/provider.ts
@@ -50,6 +50,7 @@ export class IstanbulCoverageProvider implements CoverageProvider {
       produceSourceMap: true,
       autoWrap: false,
       esModules: true,
+      compact: false,
       coverageVariable: COVERAGE_STORE_KEY,
       // @ts-expect-error missing type
       coverageGlobalScope: 'globalThis',