diff --git a/ClassDemo.Tanoa/classes/fnc_tell.sqf b/ClassDemo.Tanoa/classes/fnc_tell.sqf
index a8b1eeb..8c5f638 100644
--- a/ClassDemo.Tanoa/classes/fnc_tell.sqf
+++ b/ClassDemo.Tanoa/classes/fnc_tell.sqf
@@ -21,4 +21,6 @@ _methods = [[["_method_list", "_msg"],
 _methods = [[["_x"], "not isNil ""_x"""] call fnc_lambdastr,
             _methods] call fnc_filter;
 _result = ([_instance] + _parameters) call (_methods select 0);
-_result;  // RETURN //////////////////////////////////////////////////////////
\ No newline at end of file
+if (not isNil "_result") then {
+	_result;
+};  // RETURN //////////////////////////////////////////////////////////
\ No newline at end of file
diff --git a/ClassDemo.Tanoa/lambda/fnc_filter.sqf b/ClassDemo.Tanoa/lambda/fnc_filter.sqf
index 253f369..7f8ca67 100644
--- a/ClassDemo.Tanoa/lambda/fnc_filter.sqf
+++ b/ClassDemo.Tanoa/lambda/fnc_filter.sqf
@@ -1,6 +1,6 @@
 /////////////////////////////// fnc_filter ///////////////////////// 2016-10-21
-/*  Filter an array by application of a predicate   */
-//////////////////////////////////////////////////////
+/*  Filter an array by application of a predicate  */
+/////////////////////////////////////////////////////
 private [                //                                    
          "_fn",          // Function [IN/A0/B0]                        //
          "_arr",         // Array    [IN/A1/B1]                       //// 
@@ -19,8 +19,14 @@ if ((count _this) == 3) then {
 _acc = [];
 for "_i" from 0 to ((count _arr) - 1) do {
 	_elt = _arr select _i;
-	if (([_elt] + _extra_vars) call _fn) then {
-		_acc = _acc + [_elt];
+	if (not isNil "_elt") then {
+		if (([_elt] + _extra_vars) call _fn) then {
+			_acc = _acc + [_elt];
+		};
+        } else {
+		if (([nil] + _extra_vars) call _fn) then {
+			_acc = _acc + [_elt];
+		};
 	};
 };
 _acc;  // RETURN //////////////////////////////////////////////////////////////
\ No newline at end of file
diff --git a/classes/fnc_tell.sqf b/classes/fnc_tell.sqf
index a8b1eeb..8c5f638 100644
--- a/classes/fnc_tell.sqf
+++ b/classes/fnc_tell.sqf
@@ -21,4 +21,6 @@ _methods = [[["_method_list", "_msg"],
 _methods = [[["_x"], "not isNil ""_x"""] call fnc_lambdastr,
             _methods] call fnc_filter;
 _result = ([_instance] + _parameters) call (_methods select 0);
-_result;  // RETURN //////////////////////////////////////////////////////////
\ No newline at end of file
+if (not isNil "_result") then {
+	_result;
+};  // RETURN //////////////////////////////////////////////////////////
\ No newline at end of file
diff --git a/lambda/fnc_filter.sqf b/lambda/fnc_filter.sqf
index 253f369..7f8ca67 100644
--- a/lambda/fnc_filter.sqf
+++ b/lambda/fnc_filter.sqf
@@ -1,6 +1,6 @@
 /////////////////////////////// fnc_filter ///////////////////////// 2016-10-21
-/*  Filter an array by application of a predicate   */
-//////////////////////////////////////////////////////
+/*  Filter an array by application of a predicate  */
+/////////////////////////////////////////////////////
 private [                //                                    
          "_fn",          // Function [IN/A0/B0]                        //
          "_arr",         // Array    [IN/A1/B1]                       //// 
@@ -19,8 +19,14 @@ if ((count _this) == 3) then {
 _acc = [];
 for "_i" from 0 to ((count _arr) - 1) do {
 	_elt = _arr select _i;
-	if (([_elt] + _extra_vars) call _fn) then {
-		_acc = _acc + [_elt];
+	if (not isNil "_elt") then {
+		if (([_elt] + _extra_vars) call _fn) then {
+			_acc = _acc + [_elt];
+		};
+        } else {
+		if (([nil] + _extra_vars) call _fn) then {
+			_acc = _acc + [_elt];
+		};
 	};
 };
 _acc;  // RETURN //////////////////////////////////////////////////////////////
\ No newline at end of file