diff --git a/ThermistorTable.double.h b/ThermistorTable.double.h
index 3de3423..73c0036 100644
--- a/ThermistorTable.double.h
+++ b/ThermistorTable.double.h
@@ -35,7 +35,7 @@
 // Must be the same for all tables.
 #define NUMTEMPS 102
 
-uint16_t const temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
+const uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
 
 // Table for the Extruder.
 // Thermistor: EPCOS B57560G104F
diff --git a/ThermistorTable.single.h b/ThermistorTable.single.h
index f788a37..9734fa0 100644
--- a/ThermistorTable.single.h
+++ b/ThermistorTable.single.h
@@ -35,7 +35,7 @@
 // Must be the same for all tables.
 #define NUMTEMPS 20
 
-uint16_t const temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
+const uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
 
 // Table for the Extruder.
 // Thermistor: unknown
diff --git a/createTemperatureLookup.py b/createTemperatureLookup.py
index 883486d..76aae9f 100755
--- a/createTemperatureLookup.py
+++ b/createTemperatureLookup.py
@@ -183,7 +183,7 @@ def main(argv):
 		print "{ //" + " Table 0 chunk for B={b}, R0={r0}, R1={r1}, R2={r2}, Vref={v}".format(par="{",b=beta,r0=r0,r1=r1,r2=r2,v=vadc) 
 	else:
 		print "#define NUMTEMPS  %s " %  (len(adcs))
-		print "uint16_t temptable[NUMTEMPS][2] PROGMEM = {"
+		print "const uint16_t temptable[NUMTEMPS][2] PROGMEM = {"
 	print "// {ADC, temp*%s }, // temp         Rtherm     Vtherm      resolution   power" % (mult)
 
 	counter = 0
diff --git a/extruder/ThermistorTable.h b/extruder/ThermistorTable.h
index 4013b1a..32c1fad 100644
--- a/extruder/ThermistorTable.h
+++ b/extruder/ThermistorTable.h
@@ -24,7 +24,7 @@
 // max adc: 1023
 #define NUMTEMPS 20
 // {ADC, temp*4 }, // temp
-uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
+const uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
 {
    {1, 3364}, // 841.027617469 C
    {21, 1329}, // 332.486789769 C