diff --git a/jest.config.ts b/jest.config.ts
index e443a12..36891a1 100644
--- a/jest.config.ts
+++ b/jest.config.ts
@@ -15,12 +15,7 @@ const projects: any = fs
 export default async (): Promise<Config.InitialOptions> => ({
   projects,
   verbose: true,
-  collectCoverageFrom: [
-    "<rootDir>/src/**/*.ts",
-    "!<rootDir>/src/**/index.ts",
-    "!<rootDir>/src/**/*.d.ts",
-    "!<rootDir>/src/zk-protocol.ts"
-  ],
+  collectCoverageFrom: ["<rootDir>/src/**/*.ts", "!<rootDir>/src/**/index.ts", "!<rootDir>/src/**/*.d.ts"],
   coverageThreshold: {
     global: {
       branches: 90,
diff --git a/packages/protocols/src/zk-protocol.ts b/packages/protocols/src/zk-protocol.ts
index ce33cbe..ec8d36f 100644
--- a/packages/protocols/src/zk-protocol.ts
+++ b/packages/protocols/src/zk-protocol.ts
@@ -1,3 +1,4 @@
+/* istanbul ignore file */
 import { groth16 } from "snarkjs"
 import { FullProof, SolidityProof } from "./types"