diff --git a/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_vol_info.c b/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_vol_info.c
index d2c4fb76..1ebbaec7 100644
--- a/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_vol_info.c
+++ b/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_vol_info.c
@@ -91,7 +91,10 @@ void guac_rdpdr_fs_process_query_attribute_info(guac_rdpdr_device* device, wStre
             completion_id, STATUS_SUCCESS, 16 + GUAC_FILESYSTEM_NAME_LENGTH);
 
     Stream_Write_UINT32(output_stream, 12 + GUAC_FILESYSTEM_NAME_LENGTH);
-    Stream_Write_UINT32(output_stream, FILE_UNICODE_ON_DISK); /* FileSystemAttributes */
+    Stream_Write_UINT32(output_stream,
+              FILE_UNICODE_ON_DISK
+            | FILE_CASE_SENSITIVE_SEARCH
+            | FILE_CASE_PRESERVED_NAMES); /* FileSystemAttributes */
     Stream_Write_UINT32(output_stream, GUAC_RDP_FS_MAX_PATH ); /* MaximumComponentNameLength */
     Stream_Write_UINT32(output_stream, GUAC_FILESYSTEM_NAME_LENGTH);
     Stream_Write(output_stream, GUAC_FILESYSTEM_NAME,
diff --git a/src/protocols/rdp/rdp_fs.c b/src/protocols/rdp/rdp_fs.c
index cb99915b..6da29209 100644
--- a/src/protocols/rdp/rdp_fs.c
+++ b/src/protocols/rdp/rdp_fs.c
@@ -273,6 +273,9 @@ int guac_rdp_fs_open(guac_rdp_fs* fs, const char* path,
 
     }
 
+    GUAC_RDP_DEBUG(2, "native open: real_path=\"%s\", flags=0x%x",
+            real_path, flags);
+
     /* Open file */
     fd = open(real_path, flags, S_IRUSR | S_IWUSR);
     if (fd == -1) {
diff --git a/src/protocols/rdp/rdp_fs.h b/src/protocols/rdp/rdp_fs.h
index 274d183e..06a1d388 100644
--- a/src/protocols/rdp/rdp_fs.h
+++ b/src/protocols/rdp/rdp_fs.h
@@ -161,7 +161,9 @@
  * Filesystem attributes.
  */
 
-#define FILE_UNICODE_ON_DISK 0x00000004
+#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
+#define FILE_CASE_PRESERVED_NAMES  0x00000002
+#define FILE_UNICODE_ON_DISK       0x00000004
 
 /*
  * File create options.