diff --git a/src/gtk/spinbutt.cpp b/src/gtk/spinbutt.cpp
index 58e83b7df7..f95ee16dc8 100644
--- a/src/gtk/spinbutt.cpp
+++ b/src/gtk/spinbutt.cpp
@@ -17,10 +17,11 @@
 #ifdef wxUSE_SPINBTN
 
 #include "wx/utils.h"
+
 #include <math.h>
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // idle system
diff --git a/src/gtk/spinctrl.cpp b/src/gtk/spinctrl.cpp
index 15775b251e..6411633ad3 100644
--- a/src/gtk/spinctrl.cpp
+++ b/src/gtk/spinctrl.cpp
@@ -18,10 +18,11 @@
 
 #include "wx/utils.h"
 #include "wx/spinbutt.h"
+
 #include <math.h>
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // idle system
@@ -244,3 +245,4 @@ void wxSpinCtrl::ApplyWidgetStyle()
 }
 
 #endif
+   // wxUSE_SPINCTRL
diff --git a/src/gtk1/spinbutt.cpp b/src/gtk1/spinbutt.cpp
index 58e83b7df7..f95ee16dc8 100644
--- a/src/gtk1/spinbutt.cpp
+++ b/src/gtk1/spinbutt.cpp
@@ -17,10 +17,11 @@
 #ifdef wxUSE_SPINBTN
 
 #include "wx/utils.h"
+
 #include <math.h>
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // idle system
diff --git a/src/gtk1/spinctrl.cpp b/src/gtk1/spinctrl.cpp
index 15775b251e..6411633ad3 100644
--- a/src/gtk1/spinctrl.cpp
+++ b/src/gtk1/spinctrl.cpp
@@ -18,10 +18,11 @@
 
 #include "wx/utils.h"
 #include "wx/spinbutt.h"
+
 #include <math.h>
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // idle system
@@ -244,3 +245,4 @@ void wxSpinCtrl::ApplyWidgetStyle()
 }
 
 #endif
+   // wxUSE_SPINCTRL