diff --git a/development/pdbconv.py b/development/pdbconv.py
index bb3f2b5fe..fd828b13b 100644
--- a/development/pdbconv.py
+++ b/development/pdbconv.py
@@ -158,6 +158,11 @@ class PDBConvertor:
         "T_32PUQUAD": 4,
         "T_32PUSHORT": 4,
         "T_32PVOID": 4,
+        "T_64PRCHAR": 8,
+        "T_64PUCHAR": 8,
+        "T_64PULONG": 8,
+        "T_64PUQUAD": 8,
+        "T_64PUSHORT": 8,
         "T_64PVOID": 8,
         "T_INT4": 4,
         "T_INT8": 8,
@@ -175,6 +180,7 @@ class PDBConvertor:
         "T_USHORT": 2,
         "T_WCHAR": 2,
         "T_32PLONG": 4,
+        "T_64PLONG": 8,
         "PTR_64": 8,
         "PTR_32": 4,
     }