diff --git a/libmpdemux/qtpalette.h b/libmpdemux/qtpalette.h
index 7635ccca17..1e0a63fa46 100644
--- a/libmpdemux/qtpalette.h
+++ b/libmpdemux/qtpalette.h
@@ -5,14 +5,14 @@
 #ifndef QTPALETTE_H
 #define QTPALETTE_H
 
-static unsigned char qt_default_palette_4[4 * 4] = {
+static const unsigned char qt_default_palette_4[4 * 4] = {
   0x5E, 0x65, 0x93, 0x00,
   0xFF, 0xFF, 0xFF, 0x00,
   0xAB, 0xD0, 0xDF, 0x00,
   0x00, 0x00, 0x00, 0x00 
 };
 
-static unsigned char qt_default_palette_16[16 * 4] = {
+static const unsigned char qt_default_palette_16[16 * 4] = {
   0xFF, 0xFB, 0xFF, 0x00,
   0xBB, 0xD9, 0xEF, 0x00,
   0xB1, 0xC9, 0xE8, 0x00,
@@ -31,7 +31,7 @@ static unsigned char qt_default_palette_16[16 * 4] = {
   0x00, 0x00, 0x00, 0x00 
 };
 
-static unsigned char qt_default_palette_256[256 * 4] = {
+static const unsigned char qt_default_palette_256[256 * 4] = {
   /*   0, 0x00 */  0xFF, 0xFF, 0xFF, 0x00,
   /*   1, 0x01 */  0xCC, 0xFF, 0xFF, 0x00,
   /*   2, 0x02 */  0x99, 0xFF, 0xFF, 0x00,
@@ -290,7 +290,7 @@ static unsigned char qt_default_palette_256[256 * 4] = {
   /* 255, 0xFF */  0x00, 0x00, 0x00, 0x00
 };
 
-static unsigned char qt_default_grayscale_palette_16[16 * 4] = {
+static const unsigned char qt_default_grayscale_palette_16[16 * 4] = {
   0xFF, 0xFF, 0xFF, 0xFF,
   0xEE, 0xEE, 0xEE, 0xEE,
   0xDD, 0xDD, 0xDD, 0xDD,
@@ -309,7 +309,7 @@ static unsigned char qt_default_grayscale_palette_16[16 * 4] = {
   0x00, 0x00, 0x00, 0x00
 };
 
-static unsigned char qt_default_grayscale_palette_256[256 * 4] = {
+static const unsigned char qt_default_grayscale_palette_256[256 * 4] = {
   /*   0, 0x00 */  0xFF, 0xFF, 0xFF, 0xFF,
   /*   1, 0x01 */  0xFE, 0xFE, 0xFE, 0xFE,
   /*   2, 0x02 */  0xFD, 0xFD, 0xFD, 0xFD,