diff --git a/inc/plugin.class.php b/inc/plugin.class.php
index 2d86ce02dd1..47136fd13b0 100644
--- a/inc/plugin.class.php
+++ b/inc/plugin.class.php
@@ -357,11 +357,14 @@ public function checkPluginState($directory) {
       if ($informations['version'] != $plugin->fields['version']
           || $directory != $plugin->fields['directory']) {
          // Plugin known version differs from informations or plugin has been renamed,
-         // mark it as 'updatable'
+         // update informations in database
          $input              = $informations;
          $input['id']        = $plugin->fields['id'];
          $input['directory'] = $directory;
-         $input['state']     = self::NOTUPDATED;
+         if (!in_array($plugin->fields['state'], [self::ANEW, self::NOTINSTALLED])) {
+            // mark it as 'updatable' unless it was not installed
+            $input['state']     = self::NOTUPDATED;
+         }
 
          $this->update($input);
 
@@ -475,7 +478,6 @@ function uninstall($ID) {
          $this->update([
             'id'      => $ID,
             'state'   => self::NOTINSTALLED,
-            'version' => ''
          ]);
          $this->setUnloadedByName($this->fields['directory']);
 
diff --git a/tests/functionnal/Plugin.php b/tests/functionnal/Plugin.php
index 2975d1a2f67..3f06658c5ff 100644
--- a/tests/functionnal/Plugin.php
+++ b/tests/functionnal/Plugin.php
@@ -362,10 +362,11 @@ public function testCheckPluginStateForNewPlugin() {
    }
 
    /**
-    * Test state checking on a valid directory corresponding to a known plugin with a different version.
+    * Test state checking on a valid directory corresponding to a known and installed plugin
+    * with a different version.
     * Should results in changing plugin state to "NOTUPDATED".
     */
-   public function testCheckPluginStateForUpdatablePlugin() {
+   public function testCheckPluginStateForInstalledAndUpdatablePlugin() {
 
       $initial_data = [
          'directory' => $this->test_plugin_directory,
@@ -392,6 +393,38 @@ public function testCheckPluginStateForUpdatablePlugin() {
       );
    }
 
+   /**
+    * Test state checking on a valid directory corresponding to a known and NOT installed plugin
+    * with a different version.
+    * Should results in keeping plugin state to "NOTINSTALLED".
+    */
+   public function testCheckPluginStateForNotInstalledAndUpdatablePlugin() {
+
+      $initial_data = [
+         'directory' => $this->test_plugin_directory,
+         'name'      => 'Test plugin',
+         'version'   => '1.0',
+         'state'     => \Plugin::NOTINSTALLED,
+      ];
+      $setup_informations = [
+         'name'    => 'Test plugin NG',
+         'version' => '2.0',
+      ];
+      $expected_data = array_merge(
+         $initial_data,
+         $setup_informations,
+         [
+            'state' => \Plugin::NOTINSTALLED,
+         ]
+      );
+
+      $this->doTestCheckPluginState(
+         $initial_data,
+         $setup_informations,
+         $expected_data
+      );
+   }
+
    /**
     * Test state checking on a valid directory corresponding to a known plugin that has been renamed.
     * Should results in changing plugin directory to new value and state to "NOTUPDATED".