diff --git a/src/main/java/org/kpmp/globus/GlobusService.java b/src/main/java/org/kpmp/globus/GlobusService.java
index 18388840..61f3ff99 100644
--- a/src/main/java/org/kpmp/globus/GlobusService.java
+++ b/src/main/java/org/kpmp/globus/GlobusService.java
@@ -65,13 +65,13 @@ protected String getFileManagerUrl(String fullDirName) {
 	public List<GlobusFileListing> getFilesAndDirectoriesAtEndpoint(String packageId) throws JsonProcessingException, IOException {
 		String topDirectory = env.getProperty("GLOBUS_DIR");
 		String fullDirName = topDirectory + "/" + packageId;
-
-		GenericUrl url = new GenericUrl(API_URL + "/operation/endpoint/" + endpointID + "/ls?path=" + fullDirName);
+		fullDirName.replace(" ", "+");
+		GenericUrl url = new GenericUrl(API_URL + "/operation/endpoint/" + endpointID + "/ls?path=" + fullDirName + "&type:dir");
+		
 		HttpRequest request = requestFactory.buildGetRequest(url);
 		request.setParser(new JsonObjectParser(JSON_FACTORY));
 
-		Type type = new TypeToken<GlobusListingResponse>() {
-		}.getType();
+		Type type = new TypeToken<GlobusListingResponse>() {}.getType();
 		HttpResponse response = request.execute();
 		GlobusListingResponse globusListing = (GlobusListingResponse) response.parseAs(type);
 
diff --git a/src/test/java/org/kpmp/packages/validation/PackageFilesValidationServiceTest.java b/src/test/java/org/kpmp/packages/validation/PackageFilesValidationServiceTest.java
index e2cb0a35..5b344f88 100644
--- a/src/test/java/org/kpmp/packages/validation/PackageFilesValidationServiceTest.java
+++ b/src/test/java/org/kpmp/packages/validation/PackageFilesValidationServiceTest.java
@@ -102,6 +102,31 @@ public void testProcessGlobusDirectory() throws JsonProcessingException, IOExcep
 		assertEquals(expectedResults, actualListing);
 	}
 
+	@Test
+	public void testProcessGlobusDirectory_spacesInDirectoryNames() throws JsonProcessingException, IOException {
+		Map<String, List<String>> actualListing = new HashMap<String, List<String>>();
+		GlobusFileListing globusFile1 = new GlobusFileListing();
+		globusFile1.setName("file1");
+		globusFile1.setType("file");
+		GlobusFileListing globusFile2 = new GlobusFileListing();
+		globusFile2.setName("file2");
+		globusFile2.setType("file");
+		when(globus.getFilesAndDirectoriesAtEndpoint("123/directory 1")).thenReturn(Arrays.asList(globusFile1, globusFile2));
+		GlobusFileListing globusFile3 = new GlobusFileListing();
+		globusFile3.setName("file3");
+		globusFile3.setType("file");
+		GlobusFileListing globusFile4 = new GlobusFileListing();
+		globusFile4.setName("file4");
+		globusFile4.setType("file");
+		when(globus.getFilesAndDirectoriesAtEndpoint("123/directory2")).thenReturn(Arrays.asList(globusFile3, globusFile4));
+		Map<String, List<String>> expectedResults = new HashMap<>();
+		expectedResults.put("directory 1", Arrays.asList("file1", "file2"));
+		expectedResults.put("directory2", Arrays.asList("file3", "file4"));
+
+		actualListing = service.processGlobusDirectory(new HashMap<String, List<String>>(), Arrays.asList("directory 1", "directory2"), "123", "", "");
+
+		assertEquals(expectedResults, actualListing);
+	}
 
 	@Test
 	public void testProcessGlobusDirectory_withSubdirectories() throws JsonProcessingException, IOException {