diff --git a/gfx.mk b/gfx.mk
index 765c02b1..a9fdc414 100644
--- a/gfx.mk
+++ b/gfx.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXINC +=   $(GFXLIB)
 GFXSRC +=	$(GFXLIB)/src/gfx.c
 
diff --git a/src/gadc/gadc.mk b/src/gadc/gadc.mk
index 05b1e9cc..4ca0e7a3 100644
--- a/src/gadc/gadc.mk
+++ b/src/gadc/gadc.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gadc/gadc.c
diff --git a/src/gaudio/gaudio.mk b/src/gaudio/gaudio.mk
index 438892c0..1a406755 100644
--- a/src/gaudio/gaudio.mk
+++ b/src/gaudio/gaudio.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gaudio/gaudio.c
diff --git a/src/gdisp/gdisp.mk b/src/gdisp/gdisp.mk
index 3c8af80a..c4def261 100644
--- a/src/gdisp/gdisp.mk
+++ b/src/gdisp/gdisp.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gdisp/gdisp.c \
 			$(GFXLIB)/src/gdisp/gdisp_fonts.c \
 			$(GFXLIB)/src/gdisp/gdisp_pixmap.c \
diff --git a/src/gdriver/gdriver.mk b/src/gdriver/gdriver.mk
index 663042af..0f728543 100644
--- a/src/gdriver/gdriver.mk
+++ b/src/gdriver/gdriver.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gdriver/gdriver.c
diff --git a/src/gevent/gevent.mk b/src/gevent/gevent.mk
index 5744ae46..8879aead 100644
--- a/src/gevent/gevent.mk
+++ b/src/gevent/gevent.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gevent/gevent.c
diff --git a/src/gfile/gfile.mk b/src/gfile/gfile.mk
index 8f20b5ce..78d7582c 100644
--- a/src/gfile/gfile.mk
+++ b/src/gfile/gfile.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gfile/gfile.c \
             $(GFXLIB)/src/gfile/gfile_fs_native.c \
             $(GFXLIB)/src/gfile/gfile_fs_ram.c \
diff --git a/src/ginput/ginput.mk b/src/ginput/ginput.mk
index c814afa2..48095858 100644
--- a/src/ginput/ginput.mk
+++ b/src/ginput/ginput.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/ginput/ginput.c \
 			$(GFXLIB)/src/ginput/ginput_mouse.c \
 			$(GFXLIB)/src/ginput/ginput_keyboard.c \
diff --git a/src/gmisc/gmisc.mk b/src/gmisc/gmisc.mk
index fa2e382f..22f1da49 100644
--- a/src/gmisc/gmisc.mk
+++ b/src/gmisc/gmisc.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gmisc/gmisc.c	\
 			$(GFXLIB)/src/gmisc/gmisc_arrayops.c	\
 			$(GFXLIB)/src/gmisc/gmisc_matrix2d.c	\
diff --git a/src/gos/gos.mk b/src/gos/gos.mk
index a825dea4..7db246d2 100644
--- a/src/gos/gos.mk
+++ b/src/gos/gos.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gos/gos_chibios.c	\
 			$(GFXLIB)/src/gos/gos_freertos.c \
 			$(GFXLIB)/src/gos/gos_win32.c \
diff --git a/src/gqueue/gqueue.mk b/src/gqueue/gqueue.mk
index ab8a0423..5fc380b8 100644
--- a/src/gqueue/gqueue.mk
+++ b/src/gqueue/gqueue.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gqueue/gqueue.c
diff --git a/src/gtimer/gtimer.mk b/src/gtimer/gtimer.mk
index 801c31a6..4ef9442d 100644
--- a/src/gtimer/gtimer.mk
+++ b/src/gtimer/gtimer.mk
@@ -1 +1,6 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gtimer/gtimer.c
diff --git a/src/gwin/gwin.mk b/src/gwin/gwin.mk
index 32a0ef95..b4357328 100644
--- a/src/gwin/gwin.mk
+++ b/src/gwin/gwin.mk
@@ -1,3 +1,8 @@
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#              http://ugfx.org/license.html
+
 GFXSRC +=   $(GFXLIB)/src/gwin/gwin.c \
 			$(GFXLIB)/src/gwin/gwin_widget.c \
 			$(GFXLIB)/src/gwin/gwin_wm.c \