diff --git a/mindplot/src/main/javascript/Designer.js b/mindplot/src/main/javascript/Designer.js
index 8bdba974..b3987858 100644
--- a/mindplot/src/main/javascript/Designer.js
+++ b/mindplot/src/main/javascript/Designer.js
@@ -354,18 +354,12 @@ mindplot.Designer = new Class({
 
         shrinkSelectedBranch:function () {
             var nodes = this.getModel().filterSelectedTopics();
-            if (nodes.length <= 0) {
+            if (nodes.length <= 0 || nodes.length != 1) {
                 // If there are more than one node selected,
-                $notify($msg('ONE_TOPIC_MUST_BE_SELECTED'));
+                $notify($msg('ONLY_ONE_TOPIC_MUST_BE_SELECTED_COLLAPSE'));
                 return;
 
             }
-            if (nodes.length != 1) {
-                // If there are more than one node selected,
-                $notify($msg('ONLY_ONE_TOPIC_MUST_BE_SELECTED'));
-                return;
-            }
-
             // Execute event ...
             var topic = nodes[0];
             this._actionDispatcher.shrinkBranch([topic.getId()], !topic.areChildrenShrunken());
diff --git a/mindplot/src/main/javascript/Messages.js b/mindplot/src/main/javascript/Messages.js
index 26989e05..3f11f9ac 100644
--- a/mindplot/src/main/javascript/Messages.js
+++ b/mindplot/src/main/javascript/Messages.js
@@ -71,14 +71,15 @@ mindplot.Messages.BUNDLES = {
         SAVE_COMPLETE:'Save Complete',
         ZOOM_IN_ERROR:'Zoom too high.',
         ZOOM_ERROR:'No more zoom can be applied.',
-        ONLY_ONE_TOPIC_MUST_BE_SELECTED:'Could not create a topic. Only one node must be selected.',
+        ONLY_ONE_TOPIC_MUST_BE_SELECTED:'Could not create a topic. Only one topic must be selected.',
         ONE_TOPIC_MUST_BE_SELECTED:'Could not create a topic. One topic must be selected.',
         SAVE_COULD_NOT_BE_COMPLETED:'Save could not be completed. Try latter.',
         UNEXPECTED_ERROR_LOADING:"We're sorry, an unexpected error has occurred. Try again reloading the editor.\nIf the problem persists, contact us to support@wisemapping.com.",
         MAIN_TOPIC:'Main Topic',
         SUB_TOPIC:'Sub Topic',
         ISOLATED_TOPIC:'Isolated Topic',
-        CENTRAL_TOPIC: 'Central Topic'
+        CENTRAL_TOPIC: 'Central Topic',
+        ONLY_ONE_TOPIC_MUST_BE_SELECTED_COLLAPSE:'Children can not be collapsed. One topic must be selected.'
     },
     'es':{
         DISCARD_CHANGES:'Descartar Cambios',
@@ -123,7 +124,8 @@ mindplot.Messages.BUNDLES = {
         MAIN_TOPIC:'Tópico Principal',
         SUB_TOPIC:'Tópico Secundario',
         ISOLATED_TOPIC:'Tópico Aislado',
-        CENTRAL_TOPIC: 'Tópico Central'
+        CENTRAL_TOPIC: 'Tópico Central',
+        ONLY_ONE_TOPIC_MUST_BE_SELECTED_COLLAPSE:'Tópicos hijos no pueden ser colapsados. Solo un topic debe ser seleccionado.'
     }
 };
 
diff --git a/mindplot/src/main/resources/messages_en.properties b/mindplot/src/main/resources/messages_en.properties
index 6217c065..62c128ab 100644
--- a/mindplot/src/main/resources/messages_en.properties
+++ b/mindplot/src/main/resources/messages_en.properties
@@ -33,8 +33,9 @@ SAVE_COMPLETE=Save Complete
 
 ZOOM_IN_ERROR=Zoom too high.
 ZOOM_ERROR=No more zoom can be applied.
-ONLY_ONE_TOPIC_MUST_BE_SELECTED=Could not create a topic. Only one node must be selected.
+ONLY_ONE_TOPIC_MUST_BE_SELECTED=Could not create a topic. Only one topic must be selected.
 ONE_TOPIC_MUST_BE_SELECTED=Could not create a topic. One topic must be selected.
+ONLY_ONE_TOPIC_MUST_BE_SELECTED_COLLAPSE=Children can not be collapsed. One topic must be selected.
 SAVE_COULD_NOT_BE_COMPLETED=Save could not be completed. Try latter.
 UNEXPECTED_ERROR_LOADING=We're sorry, an unexpected error has occurred.\nTry again reloading the editor.If the problem persists, contact us to support@wisemapping.com.
 MAIN_TOPIC=Main Topic
diff --git a/mindplot/src/main/resources/messages_es.properties b/mindplot/src/main/resources/messages_es.properties
index d5bd061d..ff981df3 100644
--- a/mindplot/src/main/resources/messages_es.properties
+++ b/mindplot/src/main/resources/messages_es.properties
@@ -42,3 +42,4 @@ MAIN_TOPIC=Tópico Principal
 SUB_TOPIC=Tópico Secundario
 ISOLATED_TOPIC=Tópico Aislado
 CENTRAL_TOPIC=Tópico Central
+ONLY_ONE_TOPIC_MUST_BE_SELECTED_COLLAPSE=Tópicos hijos no pueden ser colapsados. Solo un topic debe ser seleccionado.