diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d7ce4d9..7373f1fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@
 
 - releases, linux, gtk2: random crashes when save and open dialogs are displayed. (#79)
 
+## Bugs fixed
+
+- editor, gutter: cases where warnings icons were not always updated. (#80)
 ## Other
 
 - D2 highlighter: remove the keywords `body` (deprecated), `typedef` (deprecated), `macro` (unused).
diff --git a/src/u_synmemo.pas b/src/u_synmemo.pas
index 6792bf62..293e9ed9 100644
--- a/src/u_synmemo.pas
+++ b/src/u_synmemo.pas
@@ -1584,6 +1584,7 @@ begin
       SelectLine(true);
       ExecuteCommand(ecCut, #0, nil);
       Clipboard.AsText := TrimLeft(Clipboard.AsText);
+      fCanDscan:= true;
     end;
     ecCopy: if not SelAvail then
     begin
@@ -1591,7 +1592,11 @@ begin
       ExecuteCommand(ecCopy, #0, nil);
       SelEnd:=SelStart;
     end;
-    ecPaste: patchClipboardIndentation;
+    ecPaste:
+    begin
+      patchClipboardIndentation;
+      fCanDscan:= true;
+    end;
     ecCompletionMenu:
     begin
       fCanAutoDot:=false;
@@ -1625,6 +1630,10 @@ begin
       lexWholeText([TLexOption.lxoNoWhites, TLexOption.lxoNoComments]);
       curlyBraceCloseAndIndent;
     end;
+    ecUndo:
+      fCanDscan:= true;
+    ecRedo:
+      fCanDscan:= true;
     ecCommentSelection:
       commentSelection;
     ecSwapVersionAllNone: