diff --git a/scripts/interfer.gd b/scripts/interfer.gd
index b99bd21d..e25965db 100644
--- a/scripts/interfer.gd
+++ b/scripts/interfer.gd
@@ -198,6 +198,10 @@ func on_interfer_create(interfer_name, sel_threats, fs_arr, _unit, ecms):
         var id = item.id
         param['freq'] = item.freq
         param['width'] = item.width
+        if (param['width'] < WIDTH_MIN):
+            param['width'] = WIDTH_MIN
+        elif (param['width'] > WIDTH_MAX):
+            param['width'] = WIDTH_MAX
         interfer_create(interfer_name, ecms, param, kni, id, thrs, SOURCE_INTERFER[0])
 
     for item in fs_arr: