diff --git a/spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulAutoConfiguration.java b/spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulAutoConfiguration.java
index 673496ab9..bed1a02b3 100644
--- a/spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulAutoConfiguration.java
+++ b/spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulAutoConfiguration.java
@@ -24,7 +24,6 @@
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.security.cert.CertificateException;
-import java.util.Collections;
 
 import org.aspectj.lang.annotation.Aspect;
 import org.slf4j.Logger;
@@ -242,8 +241,7 @@ public boolean resolve(Object argument, MethodParameter parameter, HttpRequestVa
 				}
 
 				if (params.getConsistencyMode() != ConsulClient.ConsistencyMode.DEFAULT) {
-					builder.configureRequestParams(
-							map -> map.put(params.getConsistencyMode().getParamName(), Collections.emptyList()));
+					builder.addRequestParameter(params.getConsistencyMode().getParamName(), "");
 				}
 
 				if (params.getWaitTime() != -1) {
diff --git a/spring-cloud-consul-core/src/test/java/org/springframework/cloud/consul/QueryParamsArgumentResolverTests.java b/spring-cloud-consul-core/src/test/java/org/springframework/cloud/consul/QueryParamsArgumentResolverTests.java
new file mode 100644
index 000000000..0b04b9f4c
--- /dev/null
+++ b/spring-cloud-consul-core/src/test/java/org/springframework/cloud/consul/QueryParamsArgumentResolverTests.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2013-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.consul;
+
+import java.net.URI;
+
+import org.junit.Test;
+
+import org.springframework.cloud.consul.ConsulAutoConfiguration.QueryParamsArgumentResolver;
+import org.springframework.cloud.consul.ConsulClient.ConsistencyMode;
+import org.springframework.cloud.consul.ConsulClient.QueryParams;
+import org.springframework.core.MethodParameter;
+import org.springframework.http.HttpMethod;
+import org.springframework.web.service.invoker.HttpRequestValues;
+import org.springframework.web.util.DefaultUriBuilderFactory;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link QueryParamsArgumentResolver}.
+ */
+public class QueryParamsArgumentResolverTests {
+
+	@Test
+	public void staleFlagIsSent() throws Exception {
+		assertThat(resolve(new QueryParams(ConsistencyMode.STALE)).getQuery()).isEqualTo("stale=");
+	}
+
+	@Test
+	public void consistentFlagIsSent() throws Exception {
+		assertThat(resolve(new QueryParams(ConsistencyMode.CONSISTENT)).getQuery()).isEqualTo("consistent=");
+	}
+
+	@Test
+	public void defaultModeSendsNoFlag() throws Exception {
+		assertThat(resolve(QueryParams.DEFAULT).getQuery()).isNull();
+	}
+
+	private URI resolve(QueryParams params) throws Exception {
+		HttpRequestValues.Builder builder = HttpRequestValues.builder()
+			.setHttpMethod(HttpMethod.GET)
+			.setUriTemplate("/v1/catalog/services");
+		MethodParameter parameter = new MethodParameter(getClass().getDeclaredMethod("target", QueryParams.class), 0);
+		new QueryParamsArgumentResolver().resolve(params, parameter, builder);
+		HttpRequestValues values = builder.build();
+		return new DefaultUriBuilderFactory("http://localhost:8500").expand(values.getUriTemplate(),
+				values.getUriVariables());
+	}
+
+	void target(QueryParams params) {
+	}
+
+}