diff --git a/compiler/packages/fcl-passrc/src/pasresolver.pp b/compiler/packages/fcl-passrc/src/pasresolver.pp
index 55ee1fe..123b822 100644
--- a/compiler/packages/fcl-passrc/src/pasresolver.pp
+++ b/compiler/packages/fcl-passrc/src/pasresolver.pp
@@ -18677,54 +18677,67 @@ function TPasResolver.BI_InExclude_OnGetCallCompatibility(
 // check params of built in proc 'include'
 var
   Params: TParamsExpr;
-  Param: TPasExpr;
-  ParamResolved: TPasResolverResult;
+  Param0, Param1: TPasExpr;
+  Param0Resolved, Param1Resolved: TPasResolverResult;
   EnumType: TPasEnumType;
   C: TClass;
+  LoTypeEl: TPasType;
+  RgType: TPasRangeType;
 begin
   if not CheckBuiltInMinParamCount(Proc,Expr,2,RaiseOnError) then
     exit(cIncompatible);
   Params:=TParamsExpr(Expr);
 
-  // first param: set variable
+  // first Param0: set variable
   // todo set of int, set of char, set of bool
-  Param:=Params.Params[0];
-  ComputeElement(Param,ParamResolved,[rcNoImplicitProc]);
+  Param0:=Params.Params[0];
+  ComputeElement(Param0,Param0Resolved,[rcNoImplicitProc]);
+  Param1:=Params.Params[1];
+  ComputeElement(Param1,Param1Resolved,[]);
+
   EnumType:=nil;
-  if ([rrfReadable,rrfWritable]*ParamResolved.Flags=[rrfReadable,rrfWritable])
-      and (ParamResolved.IdentEl<>nil) then
+  RgType:=nil;
+  if ([rrfReadable,rrfWritable]*Param0Resolved.Flags=[rrfReadable,rrfWritable])
+      and (Param0Resolved.IdentEl<>nil) then
     begin
-    C:=ParamResolved.IdentEl.ClassType;
+    C:=Param0Resolved.IdentEl.ClassType;
     if (C.InheritsFrom(TPasVariable)
         or (C=TPasArgument)
         or (C=TPasResultElement)) then
       begin
-      if (ParamResolved.BaseType=btSet)
-          and (ParamResolved.LoTypeEl is TPasEnumType) then
-        EnumType:=TPasEnumType(ParamResolved.LoTypeEl);
+      if Param0Resolved.BaseType=btSet then
+        begin
+        LoTypeEl:=Param0Resolved.LoTypeEl;
+        if LoTypeEl.ClassType=TPasEnumType then
+          begin
+          EnumType:=TPasEnumType(LoTypeEl);
+          if (not (rrfReadable in Param0Resolved.Flags))
+              or (Param0Resolved.LoTypeEl<>EnumType) then
+            begin
+            if RaiseOnError then
+              RaiseIncompatibleType(20210201225926,nIncompatibleTypeArgNo,
+                ['2'],Param0Resolved.LoTypeEl,EnumType,Param0);
+            exit(cIncompatible);
+            end;
+          end
+        else if LoTypeEl.ClassType=TPasRangeType then
+          begin
+          RgType:=TPasRangeType(LoTypeEl);
+          ComputeElement(RgType.RangeExpr.left,Param0Resolved,[]);
+          Result:=CheckAssignResCompatibility(Param0Resolved,Param1Resolved,Param1,RaiseOnError);
+          end;
+        end;
       end;
     end;
-  if EnumType=nil then
+  if (EnumType=nil) and (RgType=nil) then
     begin
     {$IFDEF VerbosePasResolver}
-    writeln('TPasResolver.OnGetCallCompatibility_InExclude ',GetResolverResultDbg(ParamResolved));
+    writeln('TPasResolver.OnGetCallCompatibility_InExclude ',GetResolverResultDbg(Param0Resolved));
     {$ENDIF}
-    exit(CheckRaiseTypeArgNo(20170216152301,1,Param,ParamResolved,
+    exit(CheckRaiseTypeArgNo(20170216152301,1,Param0,Param0Resolved,
       'variable of set of enumtype',RaiseOnError));
     end;
 
-  // second param: enum
-  Param:=Params.Params[1];
-  ComputeElement(Param,ParamResolved,[]);
-  if (not (rrfReadable in ParamResolved.Flags))
-      or (ParamResolved.LoTypeEl<>EnumType) then
-    begin
-    if RaiseOnError then
-      RaiseIncompatibleType(20170216152302,nIncompatibleTypeArgNo,
-        ['2'],ParamResolved.LoTypeEl,EnumType,Param);
-    exit(cIncompatible);
-    end;
-
   Result:=CheckBuiltInMaxParamCount(Proc,Params,2,RaiseOnError);
 end;
 
diff --git a/compiler/packages/fcl-passrc/tests/tcresolver.pas b/compiler/packages/fcl-passrc/tests/tcresolver.pas
index 7f4757b..7f89305 100644
--- a/compiler/packages/fcl-passrc/tests/tcresolver.pas
+++ b/compiler/packages/fcl-passrc/tests/tcresolver.pas
@@ -3351,7 +3351,8 @@ begin
   'begin',
   '  i:=i2;',
   '  if i=i2 then ;',
-  '  i:=ord(i);']);
+  '  i:=ord(i);',
+  '']);
   ParseProgram;
   CheckResolverUnexpectedHints;
 end;
@@ -4223,7 +4224,9 @@ begin
   '  s:= {#s3_set}[3..4];',
   '  s:= {#s4_set}[Three];',
   '  if 3 in a then ;',
-  '  s:=c;']);
+  '  s:=c;',
+  '  Include(s,3);',
+  '']);
   ParseProgram;
   CheckParamsExpr_pkSet_Markers;
   CheckResolverUnexpectedHints;
diff --git a/compiler/packages/pastojs/tests/tcmodules.pas b/compiler/packages/pastojs/tests/tcmodules.pas
index 5093de4..b7500a2 100644
--- a/compiler/packages/pastojs/tests/tcmodules.pas
+++ b/compiler/packages/pastojs/tests/tcmodules.pas
@@ -384,6 +384,7 @@ type
     Procedure TestSet_Property;
     Procedure TestSet_EnumConst;
     Procedure TestSet_IntConst;
+    Procedure TestSet_IntRange;
     Procedure TestSet_AnonymousEnumType;
     Procedure TestSet_AnonymousEnumTypeChar; // ToDo
     Procedure TestSet_ConstEnum;
@@ -6373,6 +6374,44 @@ begin
     '']));
 end;
 
+procedure TTestModule.TestSet_IntRange;
+begin
+  StartProgram(false);
+  Add([
+  'type',
+  '  TRange = 1..3;',
+  '  TEnums = set of TRange;',
+  'const',
+  '  Orange = 2;',
+  'var',
+  '  Enum: byte;',
+  '  Enums: TEnums;',
+  'begin',
+  '  Enums:=[];',
+  '  Enums:=[1];',
+  '  Enums:=[2..3];',
+  '  Include(enums,orange);',
+  '  Exclude(enums,orange);',
+  '  if orange in enums then;',
+  '  if orange in [orange,1] then;']);
+  ConvertProgram;
+  CheckSource('TestSet_IntRange',
+    LinesToStr([ // statements
+    'this.Orange = 2;',
+    'this.Enum = 0;',
+    'this.Enums = {};',
+    '']),
+    LinesToStr([
+    '$mod.Enums = {};',
+    '$mod.Enums = rtl.createSet(1);',
+    '$mod.Enums = rtl.createSet(null, 2, 3);',
+    '$mod.Enums = rtl.includeSet($mod.Enums, 2);',
+    '$mod.Enums = rtl.excludeSet($mod.Enums, 2);',
+    'if (2 in $mod.Enums) ;',
+    'if (2 in rtl.createSet(2, 1)) ;',
+    '']));
+end;
+
 procedure TTestModule.TestSet_AnonymousEnumType;
 begin
   StartProgram(false);