diff --git a/components/codetools/linkscanner.pas b/components/codetools/linkscanner.pas
index 511952c8e1..9ad1c3de07 100644
--- a/components/codetools/linkscanner.pas
+++ b/components/codetools/linkscanner.pas
@@ -267,9 +267,9 @@ const
 
 type
   TLSDirectiveState = (
-    lsdsActive,
-    lsdsInactive,// e.g. an IfDef which code was skipped
-    lsdsSkipped // has inactive parent
+    lsdsActive, // was executed
+    lsdsInactive,// was executed, but expression result was false and following code was skipped
+    lsdsSkipped // was not executed
     );
   TLSDirectiveStates = set of TLSDirectiveState;
 
diff --git a/ide/sourceeditor.pp b/ide/sourceeditor.pp
index 8882b1785b..f6a5c458ef 100644
--- a/ide/sourceeditor.pp
+++ b/ide/sourceeditor.pp
@@ -5509,11 +5509,11 @@ begin
       until (ADirective^.SrcPos<>SrcPos) or (TCodeBuffer(ADirective^.Code)<>Code)
         or (i > Scanner.DirectiveCount);
       dec(i);
-      if (ActiveCnt=1) and (InactiveCnt=0) and (SkippedCnt=0) then
+      if (ActiveCnt>0) and (InactiveCnt=0) and (SkippedCnt=0) then
         SynState:=idnEnabled
-      else if (InactiveCnt=1) and (ActiveCnt=0) and (SkippedCnt=0) then
+      else if (ActiveCnt=0) and (InactiveCnt+SkippedCnt>0) then
         SynState:=idnDisabled
-      else if (InactiveCnt>0) or (ActiveCnt>0) then
+      else if (ActiveCnt>0) then
         SynState:=idnTempEnabled
       else
         SynState:=idnInvalid;