diff --git a/src/calls-call-window.c b/src/calls-call-window.c
index 312a892..d6c5d8a 100644
--- a/src/calls-call-window.c
+++ b/src/calls-call-window.c
@@ -60,6 +60,8 @@ struct _CallsCallWindow
   GtkStack *call_stack;
   GtkFlowBox *call_selector;
 
+  guint inhibit_cookie;
+
 #ifdef CALLS_WAYLAND
   gboolean screensaver_active;
   struct zwlr_layer_shell_v1 *layer_shell_iface;
@@ -164,6 +166,28 @@ update_layer_surface (CallsCallWindow *self,
 #endif // CALLS_WAYLAND
 
 
+static void
+session_inhibit (CallsCallWindow *self, gboolean inhibit)
+{
+  if (inhibit)
+    {
+      if (self->inhibit_cookie == 0)
+        self->inhibit_cookie =
+          gtk_application_inhibit (gtk_window_get_application (GTK_WINDOW (self)),
+                                   GTK_WINDOW (self),
+                                   GTK_APPLICATION_INHIBIT_SUSPEND,
+                                   "call active");
+    }
+  else
+    {
+      gtk_application_uninhibit (gtk_window_get_application (GTK_WINDOW (self)),
+                                 self->inhibit_cookie);
+      self->inhibit_cookie = 0;
+    }
+
+}
+
+
 static void
 update_visibility (CallsCallWindow *self)
 {
@@ -184,6 +208,8 @@ update_visibility (CallsCallWindow *self)
     {
       gtk_stack_set_visible_child_name (self->main_stack, "active-call");
     }
+
+  session_inhibit (self, !!calls);
 }