diff --git a/components/synedit/synedithighlighter.pp b/components/synedit/synedithighlighter.pp
index ad2795128e..2c5910d1dc 100644
--- a/components/synedit/synedithighlighter.pp
+++ b/components/synedit/synedithighlighter.pp
@@ -1254,23 +1254,23 @@ end;
 
 function TSynHighlighterAttributes.GetBackPriorityStored: Boolean;
 begin
-  Result := FBackPriority = 0;
+  Result := FBackPriority <> 0;
 end;
 
 function TSynHighlighterAttributes.GetForePriorityStored: Boolean;
 begin
-  Result := FForePriority = 0;
+  Result := FForePriority <> 0;
 end;
 
 function TSynHighlighterAttributes.GetFramePriorityStored: Boolean;
 begin
-  Result := FFramePriority = 0;
+  Result := FFramePriority <> 0;
 end;
 
 function TSynHighlighterAttributes.GetStylePriorityStored(AIndex: TFontStyle
   ): Boolean;
 begin
-  Result := FStylePriority[AIndex] = 0;
+  Result := FStylePriority[AIndex] <> 0;
 end;
 
 procedure TSynHighlighterAttributes.AssignFrom(Src: TLazSynCustomTextAttributes);