diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 8cdad303eb..0138ad5c26 100644
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -1867,7 +1867,7 @@ static gboolean gtk_window_focus_in_callback( GtkWidget *widget,
     }
 #endif // wxUSE_CARET
 
-    bool ret = FALSE;
+    gboolean ret = FALSE;
 
     // does the window itself think that it has the focus?
     if ( !win->m_hasFocus )
@@ -1930,7 +1930,7 @@ static gboolean gtk_window_focus_out_callback( GtkWidget *widget,
     }
 #endif // wxUSE_CARET
 
-    bool ret = FALSE;
+    gboolean ret = FALSE;
 
     // don't send the window a kill focus event if it thinks that it doesn't
     // have focus already