diff --git a/src/main/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSource.java b/src/main/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSource.java
index d1d8b2e83..411a9dbbf 100644
--- a/src/main/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSource.java
+++ b/src/main/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSource.java
@@ -95,7 +95,7 @@ public class AnnotationRepositoryConfigurationSource extends RepositoryConfigura
 		// Default configuration - return package of annotated class
 		if (value.length == 0 && basePackages.length == 0 && basePackageClasses.length == 0) {
 			String className = metadata.getClassName();
-			return Collections.singleton(className.substring(0, className.lastIndexOf('.')));
+			return Collections.singleton(ClassUtils.getPackageName(className));
 		}
 
 		Set<String> packages = new HashSet<String>();
diff --git a/src/test/java/TypeInDefaultPackage.java b/src/test/java/TypeInDefaultPackage.java
new file mode 100644
index 000000000..46e7d8c4a
--- /dev/null
+++ b/src/test/java/TypeInDefaultPackage.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2014 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
+ *
+ *      http://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.
+ */
+import org.springframework.data.repository.config.EnableRepositories;
+
+/**
+ * Dummy type to be able to reference the default package.
+ * 
+ * @author Oliver Gierke
+ */
+@EnableRepositories
+public class TypeInDefaultPackage {
+
+}
diff --git a/src/test/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSourceUnitTests.java b/src/test/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSourceUnitTests.java
index e10fead16..c4d2a3508 100644
--- a/src/test/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSourceUnitTests.java
+++ b/src/test/java/org/springframework/data/repository/config/AnnotationRepositoryConfigurationSourceUnitTests.java
@@ -120,6 +120,20 @@ public class AnnotationRepositoryConfigurationSourceUnitTests {
 		assertThat(source.getAttribute("namedQueriesLocation"), is("bar"));
 	}
 
+	/**
+	 * @see DATACMNS-502
+	 */
+	@Test
+	public void returnsEmptyStringForBasePackage() throws Exception {
+
+		StandardAnnotationMetadata metadata = new StandardAnnotationMetadata(getClass().getClassLoader().loadClass(
+				"TypeInDefaultPackage"));
+		RepositoryConfigurationSource configurationSource = new AnnotationRepositoryConfigurationSource(metadata,
+				EnableRepositories.class, resourceLoader, environment);
+
+		assertThat(configurationSource.getBasePackages(), hasItem(""));
+	}
+
 	private AnnotationRepositoryConfigurationSource getConfigSource(Class<?> type) {
 
 		AnnotationMetadata metadata = new StandardAnnotationMetadata(type);