diff --git a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcAsyncWhen.java b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcAsyncWhen.java
index 423c6e0503..b4a60730cb 100644
--- a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcAsyncWhen.java
+++ b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcAsyncWhen.java
@@ -34,21 +34,18 @@ class MockMvcAsyncWhen implements When, MockMvcAcceptor {
 	@Override
 	public MethodVisitor<When> apply(SingleContractMetadata metadata) {
 		Response response = metadata.getContract().getResponse();
-		if (response.getAsync()) {
-			this.blockBuilder.addIndented(".when().async()");
-		}
+		addAsync();
 		if (response.getDelay() != null) {
 			String delay = ".timeout(" + response.getDelay().getServerValue() + ")";
-			if (response.getAsync()) {
-				this.blockBuilder.append(delay);
-			}
-			else {
-				this.blockBuilder.addIndented(delay);
-			}
+			this.blockBuilder.append(delay);
 		}
 		return this;
 	}
 
+	private void addAsync() {
+		this.blockBuilder.addIndented(".when().async()");
+	}
+
 	@Override
 	public boolean accept(SingleContractMetadata metadata) {
 		boolean accept = acceptType(this.generatedClassMetaData, metadata);
diff --git a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/converter/YamlToContracts.groovy b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/converter/YamlToContracts.groovy
index 77b053912a..456f4a58bc 100644
--- a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/converter/YamlToContracts.groovy
+++ b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/converter/YamlToContracts.groovy
@@ -365,6 +365,7 @@ class YamlToContracts {
 							async()
 						}
 						if (yamlContract.response.fixedDelayMilliseconds) {
+							async()
 							fixedDelayMilliseconds(yamlContract.response.fixedDelayMilliseconds)
 						}
 						bodyMatchers {
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MethodBodyBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MethodBodyBuilderSpec.groovy
index de74e73f8b..8818a9170c 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MethodBodyBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MethodBodyBuilderSpec.groovy
@@ -1756,6 +1756,83 @@ response:
 			}
 	}
 
+	@Issue("#1262")
+	def "should work with the timeout flag for groovy [#methodBuilderName]"() {
+		given:
+			Contract contractDsl = Contract.make {
+				request {
+					method(GET())
+					url("/hello")
+				}
+				response {
+					status(200)
+					fixedDelayMilliseconds(5000)
+				}
+			}
+			methodBuilder()
+		when:
+			String test = singleTestGenerator(contractDsl)
+		then:
+			SyntaxChecker.tryToCompileWithoutCompileStatic(methodBuilderName, test)
+		and:
+			test.contains("timeout")
+		and:
+			stubMappingIsValidWireMockStub(contractDsl)
+		where:
+			methodBuilderName | methodBuilder
+			"spock"           | {
+				properties.testFramework = TestFramework.SPOCK
+			}
+			"mockmvc"         | {
+				properties.testMode = TestMode.MOCKMVC
+			}
+			"testNG"          | {
+				properties.testFramework = TestFramework.TESTNG
+			}
+	}
+
+	@Issue("#1262")
+	def "should work with the timeout flag for yaml [#methodBuilderName]"() {
+		given:
+			String yaml = '''\
+request:
+  method: GET
+  url: /hello
+  queryParameters:
+    name: LuLu
+response:
+  status: 200
+  fixedDelayMilliseconds: 5000
+  body: "Hello LuLu"
+  async: true
+'''
+			File tmpFile = File.createTempFile("foo", ".yml")
+			tmpFile.createNewFile()
+			tmpFile.text = yaml
+			Contract contractDsl = new YamlContractConverter().convertFrom(tmpFile).
+					first()
+			methodBuilder()
+		when:
+			String test = singleTestGenerator(contractDsl)
+		then:
+			SyntaxChecker.tryToCompileWithoutCompileStatic(methodBuilderName, test)
+		and:
+			test.contains("timeout")
+		and:
+			stubMappingIsValidWireMockStub(contractDsl)
+		where:
+			methodBuilderName | methodBuilder
+			"spock"           | {
+				properties.testFramework = TestFramework.SPOCK
+			}
+			"mockmvc"         | {
+				properties.testMode = TestMode.MOCKMVC
+			}
+			"testNG"          | {
+				properties.testFramework = TestFramework.TESTNG
+			}
+	}
+
 	@Issue("#1049")
 	def "should work with body having new lines [#methodBuilderName]"() {
 		given: