diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f826b7c0..61067c59d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 - Updated Sidekiq to 6.0.7
 - Fix a bug: managers do not see the name of the user who reserved a slot
 - Fix a bug: OpenAPI documentation is not available
+- Fix a bug: summary of create training availability shows incorrect alert about slot splitting
 - Fix a security issue: updated websocket-extensions to 0.1.5 to fix [CVE-2020-7663](https://nvd.nist.gov/vuln/detail/CVE-2020-7663)
 - [TODO DEPLOY] `rails fablab:setup:env_to_db`
 - [TODO DEPLOY] `\curl -sSL https://raw.githubusercontent.com/sleede/fab-manager/master/scripts/redis-upgrade.sh | bash`
diff --git a/app/assets/javascripts/controllers/admin/calendar.js.erb b/app/assets/javascripts/controllers/admin/calendar.js.erb
index eb3350244..1a5cf5b0f 100644
--- a/app/assets/javascripts/controllers/admin/calendar.js.erb
+++ b/app/assets/javascripts/controllers/admin/calendar.js.erb
@@ -637,7 +637,7 @@ Application.Controllers.controller('CreateEventModalController', ['$scope', '$ui
       const count = $scope.selectedMachines.length;
       $scope.selectedMachines = [];
       $scope.selectedMachinesBinding = {};
-      if (count == 0) {
+      if (count === 0) {
         $scope.machines.forEach(function (machine) {
           $scope.selectedMachines.push(machine);
           $scope.selectedMachinesBinding[machine.id] = true;
@@ -665,7 +665,7 @@ Application.Controllers.controller('CreateEventModalController', ['$scope', '$ui
       const count = $scope.selectedPlans.length;
       $scope.selectedPlans = [];
       $scope.selectedPlansBinding = {};
-      if (count == 0) {
+      if (count === 0) {
         plansPromise.forEach(function (plan) {
           $scope.selectedPlans.push(plan);
           $scope.selectedPlansBinding[plan.id] = true;
@@ -705,7 +705,7 @@ Application.Controllers.controller('CreateEventModalController', ['$scope', '$ui
      * Move the modal UI to the next step
      */
     $scope.next = function () {
-      if ($scope.step === 1) { $scope.setNbTotalPlaces(); }
+      if ($scope.step === 1) { return validateType(); }
       if ($scope.step === 2) { return validateSelection(); }
       if ($scope.step === 5) { return validateRecurrence(); }
       return $scope.step++;
@@ -722,13 +722,14 @@ Application.Controllers.controller('CreateEventModalController', ['$scope', '$ui
     $scope.cancel = function () { $uibModalInstance.dismiss('cancel'); };
 
     /**
-     * For training avaiabilities, set the maximum number of people allowed to register on this slot
+     * For training/space availabilities, set the maximum number of people allowed registering on this slot.
+     * Also, set the default slot duration
      */
     $scope.setNbTotalPlaces = function () {
       if ($scope.availability.available_type === 'training') {
-        return $scope.availability.nb_total_places = $scope.selectedTraining.nb_total_places;
+        $scope.availability.nb_total_places = $scope.selectedTraining.nb_total_places;
       } else if ($scope.availability.available_type === 'space') {
-        return $scope.availability.nb_total_places = $scope.selectedSpace.default_places;
+        $scope.availability.nb_total_places = $scope.selectedSpace.default_places;
       }
     };
 
@@ -876,6 +877,19 @@ Application.Controllers.controller('CreateEventModalController', ['$scope', '$ui
       $scope.step++;
     };
 
+    /**
+     * Initialize some settings, depending on the availability type, before continuing to step 2 (select a machine/training/space)
+     */
+    const validateType = function () {
+      $scope.setNbTotalPlaces();
+      if ($scope.availability.available_type === 'training') {
+        $scope.availability.slot_duration = undefined;
+      } else {
+        $scope.availability.slot_duration = parseInt(slotDurationPromise.setting.value, 10);
+      }
+      $scope.step++;
+    }
+
     /**
      * Compute the various occurrences of the availability, according to the recurrence settings
      */
diff --git a/app/assets/templates/admin/calendar/eventModal.html.erb b/app/assets/templates/admin/calendar/eventModal.html.erb
index a47859435..12a8ddf85 100644
--- a/app/assets/templates/admin/calendar/eventModal.html.erb
+++ b/app/assets/templates/admin/calendar/eventModal.html.erb
@@ -222,7 +222,7 @@
       <ul>
         <li ng-repeat="slot in occurrences">{{slot.start_at | amDateFormat:'L LT'}} - {{slot.end_at | amDateFormat:'LT'}}</li>
       </ul>
-      <div class="alert alert-info text-xs">
+      <div class="alert alert-info text-xs" ng-show="availability.slot_duration">
         <i class="fa fa-lightbulb-o m-r" aria-hidden="true"></i>
         <span translate translate-values="{DURATION: availability.slot_duration, COUNT: occurrences.length}"> {{ 'app.admin.calendar.divided_in_slots' }}</span>
       </div>