diff --git a/matlab/disp_moments.m b/matlab/disp_moments.m
index 00f23da84..e6c9d2fa8 100644
--- a/matlab/disp_moments.m
+++ b/matlab/disp_moments.m
@@ -189,7 +189,7 @@ elseif ~options_.hp_filter && options_.one_sided_hp_filter && ~options_.bandpass
     [hptrend,y] = one_sided_hp_filter(y,options_.one_sided_hp_filter);
 elseif ~options_.hp_filter && ~options_.one_sided_hp_filter && options_.bandpass.indicator
     data_temp=dseries(y,'0q1');
-    data_temp=baxter_king_filter(data_temp,options_.bandpass.passband(1),options_.bandpass.passband(2),12);
+    data_temp=baxter_king_filter(data_temp,options_.bandpass.passband(1),options_.bandpass.passband(2),options_.bandpass.K);
     y=data_temp.data;
 elseif ~options_.hp_filter && ~options_.one_sided_hp_filter  && ~options_.bandpass.indicator
     y = bsxfun(@minus, y, m);
diff --git a/matlab/global_initialization.m b/matlab/global_initialization.m
index 80d9e5731..7cd2e6490 100644
--- a/matlab/global_initialization.m
+++ b/matlab/global_initialization.m
@@ -169,6 +169,7 @@ options_.nofunctions = false;
 
 options_.bandpass.indicator = 0;
 options_.bandpass.passband = [6; 32];
+options_.bandpass.K=12;
 
 % Extended path options
 %