diff --git a/spring-cloud-contract-stub-runner/src/main/java/org/springframework/cloud/contract/stubrunner/StubRunnerOptions.java b/spring-cloud-contract-stub-runner/src/main/java/org/springframework/cloud/contract/stubrunner/StubRunnerOptions.java
index b1f89efced..c74da90760 100644
--- a/spring-cloud-contract-stub-runner/src/main/java/org/springframework/cloud/contract/stubrunner/StubRunnerOptions.java
+++ b/spring-cloud-contract-stub-runner/src/main/java/org/springframework/cloud/contract/stubrunner/StubRunnerOptions.java
@@ -221,6 +221,9 @@ public class StubRunnerOptions {
 	}
 
 	public String getStubRepositoryRootAsString() {
+		if (this.stubRepositoryRoot == null) {
+			return "";
+		}
 		try {
 			return this.stubRepositoryRoot.getURI().toString();
 		}