diff --git a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/JsonBodyVerificationBuilder.groovy b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/JsonBodyVerificationBuilder.groovy
index 017fdaca81..f316a7267b 100644
--- a/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/JsonBodyVerificationBuilder.groovy
+++ b/spring-cloud-contract-verifier/src/main/groovy/org/springframework/cloud/contract/verifier/builder/JsonBodyVerificationBuilder.groovy
@@ -152,7 +152,7 @@ class JsonBodyVerificationBuilder implements BodyMethodGeneration, ClassVerifier
 		retrievedValue = retrievedValue instanceof RegexProperty ?
 				((RegexProperty) retrievedValue).getPattern().pattern() : retrievedValue
 		String valueAsParam = retrievedValue instanceof String ?
-				quotedAndEscaped(retrievedValue.toString()) : retrievedValue.toString()
+				quotedAndEscaped(retrievedValue.toString()) : objectToString(retrievedValue)
 		if (arrayRelated(path) && MatchingType.regexRelated(bodyMatcher.matchingType())) {
 			buildCustomMatchingConditionForEachElement(bb, path, valueAsParam)
 		}
@@ -166,6 +166,11 @@ class JsonBodyVerificationBuilder implements BodyMethodGeneration, ClassVerifier
 		addColonIfRequired(lineSuffix, bb)
 	}
 
+	private String objectToString(Object value) {
+		return value instanceof Long
+				? String.valueOf(value).concat("L") : String.valueOf(value)
+	}
+
 	protected String processIfTemplateIsPresent(String method, DocumentContext parsedRequestBody) {
 		if (textContainsJsonPathTemplate(method) && contract.request?.body) {
 			// Unquoting the values of non strings
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 cb6ac07113..5834417b88 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
@@ -27,6 +27,7 @@ import spock.lang.Specification
 import org.springframework.boot.test.rule.OutputCapture
 import org.springframework.cloud.contract.spec.Contract
 import org.springframework.cloud.contract.verifier.config.ContractVerifierConfigProperties
+import org.springframework.cloud.contract.verifier.converter.YamlContractConverter
 import org.springframework.cloud.contract.verifier.dsl.wiremock.WireMockStubVerifier
 import org.springframework.cloud.contract.verifier.util.ContractVerifierDslConverter
 import org.springframework.cloud.contract.verifier.util.SyntaxChecker
@@ -1356,4 +1357,54 @@ DocumentContext parsedJson = JsonPath.parse(json);
 			"JaxRsClientJUnitMethodBodyBuilder"                  | { Contract dsl -> new JaxRsClientJUnitMethodBodyBuilder(dsl, properties, classDataForMethod) }
 	}
 
+	@Issue("#1052")
+	def "should work with large numbers [#methodBuilderName]"() {
+		given:
+			String yaml = '''\
+request:
+  url: /numbers
+  queryParameters:
+    page: 0
+    size: 2
+  method: GET
+  headers:
+    Content-Type: application/json
+
+response:
+  status: 200
+  headers:
+    Content-Type: application/json;charset=UTF-8
+  body:
+    - number: 1541609556000
+    - number: 1541609316000
+  matchers:
+    body:
+      - path: $.[0].number
+        type: by_equality
+      - path: $.[1].number
+        type: by_equality
+'''
+			File tmpFile = File.createTempFile("foo", ".yml")
+			tmpFile.createNewFile()
+			tmpFile.text = yaml
+			Contract contractDsl = new YamlContractConverter().convertFrom(tmpFile).first()
+			MethodBodyBuilder builder = methodBuilder(contractDsl)
+			BlockBuilder blockBuilder = new BlockBuilder(" ")
+		when:
+			builder.appendTo(blockBuilder)
+		then:
+			String test = blockBuilder.toString()
+			SyntaxChecker.tryToCompileWithoutCompileStatic(methodBuilderName, test)
+			!test.contains('''(1541609556000)''')
+			test.contains('''(1541609556000L)''')
+		and:
+			stubMappingIsValidWireMockStub(contractDsl)
+		where:
+			methodBuilderName                                    | methodBuilder
+			"MockMvcSpockMethodBuilder"                          | { Contract dsl -> new HttpSpockMethodRequestProcessingBodyBuilder(dsl, properties, classDataForMethod) }
+			"MockMvcJUnitMethodBuilder"                          | { Contract dsl -> new MockMvcJUnitMethodBodyBuilder(dsl, properties, classDataForMethod) }
+			"JaxRsClientSpockMethodRequestProcessingBodyBuilder" | { Contract dsl -> new JaxRsClientSpockMethodRequestProcessingBodyBuilder(dsl, properties, classDataForMethod) }
+			"JaxRsClientJUnitMethodBodyBuilder"                  | { Contract dsl -> new JaxRsClientJUnitMethodBodyBuilder(dsl, properties, classDataForMethod) }
+	}
+
 }
diff --git a/spring-cloud-contract-verifier/src/test/resources/yml/issue1052.yml b/spring-cloud-contract-verifier/src/test/resources/yml/issue1052.yml
new file mode 100644
index 0000000000..38c1634b07
--- /dev/null
+++ b/spring-cloud-contract-verifier/src/test/resources/yml/issue1052.yml
@@ -0,0 +1,22 @@
+request:
+  url: /numbers
+  queryParameters:
+    page: 0
+    size: 2
+  method: GET
+  headers:
+    Content-Type: application/json
+
+response:
+  status: 200
+  headers:
+    Content-Type: application/json;charset=UTF-8
+  body:
+    - number: 1541609556000
+    - number: 1541609316000
+  matchers:
+    body:
+      - path: $.[0].number
+        type: by_equality
+      - path: $.[1].number
+        type: by_equality
\ No newline at end of file