diff --git a/rtengine/refreshmap.cc b/rtengine/refreshmap.cc
index 79f5f0e7d..dc630387f 100644
--- a/rtengine/refreshmap.cc
+++ b/rtengine/refreshmap.cc
@@ -662,7 +662,7 @@ int refreshmap[rtengine::NUMOFEVENTS] = {
     LUMINANCECURVE,   // EvLocallabsensihs
     LUMINANCECURVE,   // Evlocallabradmaskcol
     LUMINANCECURVE,   // Evlocallabradmaskexp
-    M_VOID,           // EvlocallabToolAdded
+    LUMINANCECURVE,   // EvlocallabToolAdded
     LUMINANCECURVE,   // EvlocallabCCmaskSHshape
     LUMINANCECURVE,   // EvlocallabLLmaskSHshape
     LUMINANCECURVE,   // EvlocallabHHmaskSHshape
diff --git a/rtgui/locallabtools.cc b/rtgui/locallabtools.cc
index 2fcc0a780..e9a1d00e0 100644
--- a/rtgui/locallabtools.cc
+++ b/rtgui/locallabtools.cc
@@ -186,6 +186,11 @@ void LocallabTool::addLocallabTool(bool raiseEvent)
 
     // Raise event if required
     if (raiseEvent) { // Note: Event is only raised when a tool is added by user
+        // By default, activate newly added tool
+        enaExpConn.block(true);
+        exp->setEnabled(true);
+        enaExpConn.block(false);
+
         if (needMode) {
             // Set complexity mode according to chosen default one
             complexityConn.block(true);