diff --git a/Fwk/AppFwk/cafViewer/cafCadNavigation.cpp b/Fwk/AppFwk/cafViewer/cafCadNavigation.cpp
index ae4542ea73..a8340535bc 100644
--- a/Fwk/AppFwk/cafViewer/cafCadNavigation.cpp
+++ b/Fwk/AppFwk/cafViewer/cafCadNavigation.cpp
@@ -167,6 +167,8 @@ bool caf::CadNavigation::handleInputEvent(QInputEvent* inputEvent)
             }
         }
         break;
+    default:
+        break;
     }
 
     if (isSupposedToConsumeEvents())
diff --git a/Fwk/AppFwk/cafViewer/cafCeetronNavigation.cpp b/Fwk/AppFwk/cafViewer/cafCeetronNavigation.cpp
index e66df439b2..88f70e3516 100644
--- a/Fwk/AppFwk/cafViewer/cafCeetronNavigation.cpp
+++ b/Fwk/AppFwk/cafViewer/cafCeetronNavigation.cpp
@@ -132,6 +132,8 @@ bool caf::CeetronNavigation::handleInputEvent(QInputEvent* inputEvent)
     case QEvent::Wheel:
         wheelEvent(static_cast<QWheelEvent*> ( inputEvent));
         break;
+    default:
+        break;
     }
 
     return false;
diff --git a/Fwk/AppFwk/cafViewer/cafCeetronPlusNavigation.cpp b/Fwk/AppFwk/cafViewer/cafCeetronPlusNavigation.cpp
index ace62919f8..0a7f233ae6 100644
--- a/Fwk/AppFwk/cafViewer/cafCeetronPlusNavigation.cpp
+++ b/Fwk/AppFwk/cafViewer/cafCeetronPlusNavigation.cpp
@@ -202,6 +202,8 @@ bool caf::CeetronPlusNavigation::handleInputEvent(QInputEvent* inputEvent)
             }
         }
         break;
+    default:
+        break;
     }
 
     if (isSupposedToConsumeEvents())