diff --git a/unmanaged.cpp b/unmanaged.cpp
index 5b0a2e335f..1f7badb632 100644
--- a/unmanaged.cpp
+++ b/unmanaged.cpp
@@ -32,6 +32,8 @@ bool Unmanaged::track( Window w )
     XWindowAttributes attr;
     if( !XGetWindowAttributes(display(), w, &attr))
         return false;
+    if( attr.c_class == InputOnly )
+        return false;
     setHandle( w );
     geom = QRect( attr.x, attr.y, attr.width, attr.height );
     vis = attr.visual;
diff --git a/workspace.cpp b/workspace.cpp
index 34aef32842..a3c5694508 100644
--- a/workspace.cpp
+++ b/workspace.cpp
@@ -360,7 +360,7 @@ void Workspace::init()
             XGetWindowAttributes(display(), wins[i], &attr);
             if (attr.override_redirect )
                 {
-                if( attr.map_state != IsUnmapped && compositing())
+                if( attr.map_state != IsUnmapped && attr.c_class != InputOnly && compositing())
                     createUnmanaged( wins[ i ] );
                 continue;
                 }