diff --git a/src/tools/ecode/plugins/autocomplete/autocompleteplugin.cpp b/src/tools/ecode/plugins/autocomplete/autocompleteplugin.cpp
index a30b80854..8290c7959 100644
--- a/src/tools/ecode/plugins/autocomplete/autocompleteplugin.cpp
+++ b/src/tools/ecode/plugins/autocomplete/autocompleteplugin.cpp
@@ -134,6 +134,12 @@ void AutoCompletePlugin::onRegister( UICodeEditor* editor ) {
 		editor->addEventListener( Event::OnCursorPosChange, [this, editor]( const Event* ) {
 			if ( !mReplacing )
 				resetSuggestions( editor );
+			else if ( mSignatureHelpVisible && mSignatureHelpPosition.isValid() &&
+					  !editor->getDocument().getSelection().hasSelection() &&
+					  mSignatureHelpPosition.line() !=
+						  editor->getDocument().getSelection().end().line() ) {
+				resetSignatureHelp();
+			}
 		} ) );
 
 	listeners.push_back( editor->addEventListener(