diff --git a/openstack-neutron/pom.xml b/openstack-neutron/pom.xml
index 42b3796..15e0225 100644
--- a/openstack-neutron/pom.xml
+++ b/openstack-neutron/pom.xml
@@ -71,6 +71,11 @@
       <artifactId>jclouds-core</artifactId>
       <version>${project.parent.version}</version>
     </dependency>
+    <!-- for the extension namespaces -->
+    <dependency>
+      <groupId>com.google.inject.extensions</groupId>
+      <artifactId>guice-multibindings</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.apache.jclouds</groupId>
       <artifactId>jclouds-core</artifactId>
diff --git a/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/config/NeutronHttpApiModule.java b/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/config/NeutronHttpApiModule.java
index e7b33c6..4252467 100644
--- a/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/config/NeutronHttpApiModule.java
+++ b/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/config/NeutronHttpApiModule.java
@@ -16,6 +16,8 @@
  */
 package org.jclouds.openstack.neutron.v2.config;
 
+import static org.jclouds.openstack.keystone.v2_0.config.KeystoneHttpApiModule.aliasBinder;
+
 import java.net.URI;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
@@ -41,9 +43,8 @@
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
-import com.google.common.collect.ImmutableMultimap;
-import com.google.common.collect.Multimap;
 import com.google.inject.Provides;
+import com.google.inject.multibindings.MapBinder;
 
 /**
  * Configures the Neutron connection.
@@ -57,19 +58,17 @@
       bind(DateAdapter.class).to(Iso8601DateAdapter.class);
       bind(ImplicitOptionalConverter.class).to(PresentWhenExtensionAnnotationNamespaceEqualsAnyNamespaceInExtensionsSet.class);
       super.configure();
+      bindAliases();
    }
 
-   @Provides
-   @Singleton
-   public Multimap<URI, URI> aliases() {
-       return ImmutableMultimap.<URI, URI>builder()
-          .put(URI.create(ExtensionNamespaces.L3_ROUTER),
-               URI.create("http://docs.openstack.org/ext/neutron/router/api/v1.0"))
-          .put(URI.create(ExtensionNamespaces.SECURITY_GROUPS),
-               URI.create("http://docs.openstack.org/ext/securitygroups/api/v2.0"))
-          .put(URI.create(ExtensionNamespaces.LBAAS),
-                  URI.create("http://docs.openstack.org/networking/ext/lbaas/api/v1.0"))
-          .build();
+   private void bindAliases() {
+      MapBinder<URI, URI> aliases = aliasBinder(binder());
+      aliases.addBinding(URI.create(ExtensionNamespaces.L3_ROUTER)).toInstance(
+            URI.create("http://docs.openstack.org/ext/neutron/router/api/v1.0"));
+      aliases.addBinding(URI.create(ExtensionNamespaces.SECURITY_GROUPS)).toInstance(
+            URI.create("http://docs.openstack.org/ext/securitygroups/api/v2.0"));
+      aliases.addBinding(URI.create(ExtensionNamespaces.LBAAS)).toInstance(
+            URI.create("http://docs.openstack.org/networking/ext/lbaas/api/v1.0"));
    }
 
    @Provides
diff --git a/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2_0/config/NeutronHttpApiModule.java b/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2_0/config/NeutronHttpApiModule.java
index fe3d74c..b46262e 100644
--- a/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2_0/config/NeutronHttpApiModule.java
+++ b/openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2_0/config/NeutronHttpApiModule.java
@@ -16,11 +16,14 @@
  */
 package org.jclouds.openstack.neutron.v2_0.config;
 
-import java.net.URI;
+import static org.jclouds.openstack.keystone.v2_0.config.KeystoneHttpApiModule.aliasBinder;
+
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
+
 import javax.inject.Provider;
 import javax.inject.Singleton;
+
 import org.jclouds.http.HttpErrorHandler;
 import org.jclouds.http.annotation.ClientError;
 import org.jclouds.http.annotation.Redirection;
@@ -34,11 +37,10 @@
 import org.jclouds.rest.ConfiguresHttpApi;
 import org.jclouds.rest.config.HttpApiModule;
 import org.jclouds.rest.functions.ImplicitOptionalConverter;
+
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
-import com.google.common.collect.ImmutableMultimap;
-import com.google.common.collect.Multimap;
 import com.google.inject.Provides;
 
 /**
@@ -52,17 +54,11 @@
       bind(DateAdapter.class).to(Iso8601DateAdapter.class);
       bind(ImplicitOptionalConverter.class).to(PresentWhenExtensionAnnotationNamespaceEqualsAnyNamespaceInExtensionsSet.class);
       super.configure();
+      aliasBinder(binder());
    }
    
    @Provides
    @Singleton
-   public Multimap<URI, URI> aliases() {
-       return ImmutableMultimap.<URI, URI>builder()
-          .build();
-   }
-
-   @Provides
-   @Singleton
    public LoadingCache<String, Set<? extends Extension>> provideExtensionsByZone(final Provider<NeutronApi> quantumApi) {
       return CacheBuilder.newBuilder().expireAfterWrite(23, TimeUnit.HOURS)
             .build(new CacheLoader<String, Set<? extends Extension>>() {