diff --git a/src/drivers/GDI/Fl_GDI_Image_Surface.cxx b/src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx
similarity index 100%
rename from src/drivers/GDI/Fl_GDI_Image_Surface.cxx
rename to src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx
diff --git a/src/drivers/Quartz/Fl_Quartz_Image_Surface.cxx b/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
similarity index 100%
rename from src/drivers/Quartz/Fl_Quartz_Image_Surface.cxx
rename to src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
diff --git a/src/drivers/Xlib/Fl_Xlib_Image_Surface.cxx b/src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx
similarity index 100%
rename from src/drivers/Xlib/Fl_Xlib_Image_Surface.cxx
rename to src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx