diff --git a/gns3server/schemas/link.py b/gns3server/schemas/link.py
index 13e1af43..877c4a89 100644
--- a/gns3server/schemas/link.py
+++ b/gns3server/schemas/link.py
@@ -93,7 +93,7 @@ LINK_CAPTURE_SCHEMA = {
     "properties": {
         "data_link_type": {
             "description": "PCAP data link type (http://www.tcpdump.org/linktypes.html)",
-            "enum": ["DLT_ATM_RFC1483", "DLT_EN10MB", "DLT_FRELAY", "DLT_C_HDLC"]
+            "enum": ["DLT_ATM_RFC1483", "DLT_EN10MB", "DLT_FRELAY", "DLT_C_HDLC", "DLT_PPP_SERIAL"]
         },
         "capture_file_name": {
             "description": "Read only property. The name of the capture file if capture is running",
diff --git a/gns3server/schemas/node.py b/gns3server/schemas/node.py
index 12c342b1..a832c8cf 100644
--- a/gns3server/schemas/node.py
+++ b/gns3server/schemas/node.py
@@ -85,7 +85,7 @@ NODE_CAPTURE_SCHEMA = {
         },
         "data_link_type": {
             "description": "PCAP data link type (http://www.tcpdump.org/linktypes.html)",
-            "enum": ["DLT_ATM_RFC1483", "DLT_EN10MB", "DLT_FRELAY", "DLT_C_HDLC"]
+            "enum": ["DLT_ATM_RFC1483", "DLT_EN10MB", "DLT_FRELAY", "DLT_C_HDLC", "DLT_PPP_SERIAL"]
         }
     },
     "additionalProperties": False,