diff --git a/src/idl/nanopb/measurements.proto b/src/idl/nanopb/measurements.proto
index 93ce0d8a..27ca7edb 100644
--- a/src/idl/nanopb/measurements.proto
+++ b/src/idl/nanopb/measurements.proto
@@ -60,7 +60,7 @@ message MeasurementSet {
       Good = 6;
       Excellent = 7;
   }
-  enum Type { /// types of measuremetn samples we can take. minor changes to SI units to encode efficiently
+  enum Type { /// types of measurement samples we can take. minor changes to SI units to encode efficiently
     UnknownEvent = 0; /// Protocol Buffers uses the first enum as the default
     TimeMS = 1; /// more percise time, in milliseconds
     VMC = 2; /// Vector Magnitude Counts. Rough measure of total activity. Unitless