diff --git a/EKF/matlab/EKF_replay/Filter/RunFilter.m b/EKF/matlab/EKF_replay/Filter/RunFilter.m
index f2da59834b..6ff8f377e8 100755
--- a/EKF/matlab/EKF_replay/Filter/RunFilter.m
+++ b/EKF/matlab/EKF_replay/Filter/RunFilter.m
@@ -61,7 +61,7 @@ output = struct('time_lapsed',[]',...
     'mag_XYZ',[],...
     'wind_NE',[],...
     'dt',0,...
-    'state_variance',[],...
+    'state_variances',[],...
     'innovations',[],...
     'magFuseMethod',[]);
 
@@ -344,4 +344,4 @@ for index = indexStart:indexStop
     
 end
 
-end
\ No newline at end of file
+end