diff --git a/protobufs_extra/position_proto.py b/protobufs_extra/position_proto.py
index 8e3cc47..0896a61 100644
--- a/protobufs_extra/position_proto.py
+++ b/protobufs_extra/position_proto.py
@@ -17,7 +17,7 @@ POSITION_SCHEME = [
     ("sfixed32", "latitude_i", 1),
     ("sfixed32", "longitude_i", 2),
     ("int32", "altitude", 3),
-    ("float32", "time", 4),
+    ("fixed32", "time", 4),
     ("int32", "location_source", 5),
     ("int32", "altitude_source", 6),
     ("fixed32", "timestamp", 7),