diff --git a/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx b/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
index da63f45a3..e11c13437 100644
--- a/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
+++ b/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
@@ -18,7 +18,7 @@
 
 
 #include "../../config_lib.h"
-#include "Fl_Pico_Graphics_Driver.h"
+#include "Fl_Pico_Graphics_Driver.H"
 #include <FL/fl_draw.H>
 #include <FL/math.h>
 
diff --git a/src/drivers/PicoSDL/Fl_PicoSDL_Graphics_Driver.cxx b/src/drivers/PicoSDL/Fl_PicoSDL_Graphics_Driver.cxx
index acd55ad29..2fc906535 100644
--- a/src/drivers/PicoSDL/Fl_PicoSDL_Graphics_Driver.cxx
+++ b/src/drivers/PicoSDL/Fl_PicoSDL_Graphics_Driver.cxx
@@ -18,7 +18,7 @@
 
 
 #include "../../config_lib.h"
-#include "Fl_PicoSDL_Graphics_Driver.h"
+#include "Fl_PicoSDL_Graphics_Driver.H"
 
 #include "Fl_PicoSDL_Screen_Driver.H"
 #include <FL/x.H>
diff --git a/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx b/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
index 78e3683d9..db1564196 100644
--- a/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
+++ b/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
@@ -22,7 +22,7 @@
 
 #include <FL/x.H>
 #include <FL/Fl.H>
-#include <FL/Fl_WIndow.H>
+#include <FL/Fl_Window.H>