diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/converter/DefaultJobParametersConverter.java b/spring-batch-core/src/main/java/org/springframework/batch/core/converter/DefaultJobParametersConverter.java
index be167adf7..de5574c93 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/converter/DefaultJobParametersConverter.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/converter/DefaultJobParametersConverter.java
@@ -159,10 +159,10 @@ public class DefaultJobParametersConverter implements JobParametersConverter {
 			String key = (String) entry.getKey();
 			Object value = entry.getValue();
 			if (value instanceof Date) {
-				result.setProperty(key + DATE_TYPE, dateFormat.format(value));
+				result.setProperty(key, dateFormat.format(value));
 			}
 			else if (value instanceof Long) {
-				result.setProperty(key + LONG_TYPE, numberFormat.format(value));
+				result.setProperty(key, numberFormat.format(value));
 			}
 			else {
 				result.setProperty(key, "" + value);
diff --git a/spring-batch-core/src/test/java/org/springframework/batch/core/converter/DefaultJobParametersConverterTests.java b/spring-batch-core/src/test/java/org/springframework/batch/core/converter/DefaultJobParametersConverterTests.java
index 0890ae471..61ec26e71 100644
--- a/spring-batch-core/src/test/java/org/springframework/batch/core/converter/DefaultJobParametersConverterTests.java
+++ b/spring-batch-core/src/test/java/org/springframework/batch/core/converter/DefaultJobParametersConverterTests.java
@@ -145,8 +145,8 @@ public class DefaultJobParametersConverterTests extends TestCase {
 		Properties props = factory.getProperties(parameters);
 		assertNotNull(props);
 		assertEquals("myKey", props.getProperty("job.key"));
-		assertEquals("33243243", props.getProperty("vendor.id(long)"));
-		assertEquals("2008/01/23", props.getProperty("schedule.date(date)"));
+		assertEquals("33243243", props.getProperty("vendor.id"));
+		assertEquals("2008/01/23", props.getProperty("schedule.date"));
 	}
 
 	public void testEmptyArgs() {
diff --git a/spring-batch-core/src/test/java/org/springframework/batch/core/resource/StepExecutionResourceProxyTests.java b/spring-batch-core/src/test/java/org/springframework/batch/core/resource/StepExecutionResourceProxyTests.java
index beaa951b4..4e4b8aadd 100644
--- a/spring-batch-core/src/test/java/org/springframework/batch/core/resource/StepExecutionResourceProxyTests.java
+++ b/spring-batch-core/src/test/java/org/springframework/batch/core/resource/StepExecutionResourceProxyTests.java
@@ -157,6 +157,17 @@ public class StepExecutionResourceProxyTests extends TestCase {
 			//expected, if there isn't a JobParameter for that key, it should throw an exception
 		}
 	}
+	
+	public void testLongJobParameter() throws Exception {
+		
+		resource.setFilePattern("foo/data/%JOB_NAME%/%job.key%-foo");
+		jobInstance = new JobInstance(new Long(0), new JobParametersBuilder().addLong("job.key", new Long(123))
+				.toJobParameters(), "testJob");
+		JobExecution jobExecution = new JobExecution(jobInstance);
+		Step step = new StepSupport("bar");
+		resource.beforeStep(jobExecution.createStepExecution(step));
+		doTestPathName("123-foo", "foo" + pathsep + "data" + pathsep);
+	}
 
 	private void doTestPathName(String filename, String path) throws Exception, IOException {
 		String returnedPath = resource.getFile().getAbsolutePath();