diff --git a/ifex/output_filters/protobuf/ifex_to_protobuf.py b/ifex/output_filters/protobuf/ifex_to_protobuf.py
index ab7867f9..b5116155 100644
--- a/ifex/output_filters/protobuf/ifex_to_protobuf.py
+++ b/ifex/output_filters/protobuf/ifex_to_protobuf.py
@@ -24,12 +24,6 @@
         "int64" : "int64",
         "uint32" : "uint32",
         "uint64" : "uint64",
-        "int32" : "sint32",
-        "int64" : "sint64",
-        "uint32" : "fixed32",
-        "uint64" : "fixed64",
-        "int32" : "sfixed32",
-        "int64" : "sfixed64",
         "boolean" : "bool",
         "string" : "string",
         "uint8[]" : "bytes",