diff --git a/VERSIONS_STABLE/13566 b/VERSIONS_STABLE/13566
new file mode 100644
index 0000000000000000000000000000000000000000..52dcef375000c46b4835bf08bc2cdfc96d75a5c8
--- /dev/null
+++ b/VERSIONS_STABLE/13566
@@ -0,0 +1 @@
+* ticket #13566 : Par defaut le nombre de critiques affichées sur une page est 50.
\ No newline at end of file
diff --git a/application/modules/opac/controllers/BlogController.php b/application/modules/opac/controllers/BlogController.php
index 27a13c20daf03d821d4b14b73850af8189b80e21..326588888d6cd1cd6bb3cdf7bee1b15b190fba2e 100644
--- a/application/modules/opac/controllers/BlogController.php
+++ b/application/modules/opac/controllers/BlogController.php
@@ -90,6 +90,13 @@ class BlogController extends ZendAfi_Controller_Action {
   }
 
 
+	protected function updateBlogConfigDefault() {
+		if (!$this->view->config['nb_display'] || $this->view->config['nb_display']<1) {
+			$this->view->config['nb_display']=(new Class_Systeme_ModulesAppli())->getValeursParDefaut('blog', 'viewcritiques')['nb_display'];
+		}
+	}
+
+
   public function viewcritiquesAction() {
     $this->view->page = $this->_getParam('page',1);
     $id_module = (int)$this->_getParam('id_module');
@@ -97,7 +104,7 @@ class BlogController extends ZendAfi_Controller_Action {
     $preferences =  $profil
       ->getModuleAccueilPreferences($id_module, 'CRITIQUES');
     $this->view->config=$profil->getConfigurationOf('blog','viewcritiques','');
-
+		$this->updateBlogConfigDefault();
     $avis = Class_AvisNotice::getAvisFromPreferences($preferences,[$this->view->page, $this->view->config['nb_display']]);
 
     $this->view->liste_avis = $avis;
diff --git a/library/Class/Profil.php b/library/Class/Profil.php
index 07f33b61a645f18c1a790ef977613510527ff0a0..d17d3d3c983058f19c5982b35d0e67f84422a184 100644
--- a/library/Class/Profil.php
+++ b/library/Class/Profil.php
@@ -1935,7 +1935,7 @@ class Class_Profil extends Storm_Model_Abstract {
     return
       isset($cfg[$module])
       ? (isset($cfg[$module][$action.$action2])
-         ? $cfg[$module][$action.$action2]
+         ? array_merge($default_cfg,$cfg[$module][$action.$action2])
          : $default_cfg)
       : $default_cfg;
   }
diff --git a/tests/application/modules/opac/controllers/AbonneControllerAvisTest.php b/tests/application/modules/opac/controllers/AbonneControllerAvisTest.php
index 1f2339cfd2f41140f962391cfd953732393c86f2..b678eae6443f6a10e55afc965d81ee337b751a38 100644
--- a/tests/application/modules/opac/controllers/AbonneControllerAvisTest.php
+++ b/tests/application/modules/opac/controllers/AbonneControllerAvisTest.php
@@ -631,6 +631,31 @@ abstract class ModuleSelectionCritiquesTestCase extends AvisControllersFixturesT
 }
 
 
+class AbonneControllerAvisBlogControllerViewCritiquesDefaultTest extends ModuleSelectionCritiquesTestCase {
+
+  public function setUp() {
+    parent::setUp();
+    $profil = Class_Profil::getLoader()
+      ->find(2)
+      ->setCfgModules( ['blog' =>  ['viewcritiques' => ['barre_nav' => 'Critics']]]);
+		$profil
+      ->save();
+
+    $this->dispatch('/opac/blog/viewcritiques/id_profil/2/id_module/3');
+  }
+
+
+  /** @test */
+  public function defaultViewCriticsSetTo50() {
+		$this->assertEquals(50,Class_Profil::find(2)->getConfigurationOf('blog', 'viewcritiques','' )['nb_display']);
+  }
+
+
+  /** @test */
+  public function setBarreNavCriticsKeep() {
+		$this->assertEquals('Critics' ,Class_Profil::find(2)->getConfigurationOf('blog', 'viewcritiques','' )['barre_nav']);
+  }
+}
 
 
 class AbonneControllerAvisBlogControllerViewCritiquesTest extends ModuleSelectionCritiquesTestCase {