diff --git a/zsnes/src/dos/zloader.c b/zsnes/src/dos/zloader.c
index e3317204..6b322793 100644
--- a/zsnes/src/dos/zloader.c
+++ b/zsnes/src/dos/zloader.c
@@ -44,7 +44,7 @@ void ccmdline(void);
 char *ers[] =
 {
   "Frame Skip must be a value of 0 to 9!\n",
-  "Gamma Correction Level must be a value of 0 to 31!\n",
+  "Gamma Correction Level must be a value of 0 to 15!\n",
   "Sound Sampling Rate must be a value of 0 to 6!\n",
   "Invalid Video Mode!\n",
   "Percentage of instructions to execute must be a number from 50 to 150!\n",
@@ -166,7 +166,7 @@ int pccmdline(void)
         {
           if(!hasroom) return 4;
           gammalevel=my_atoi(argv[p+1]);
-          if(gammalevel > 31) return 11;
+          if(gammalevel > 15) return 11;
           p++;
           break;
         }
diff --git a/zsnes/src/ui.asm b/zsnes/src/ui.asm
index 3a942758..4dc640a6 100644
--- a/zsnes/src/ui.asm
+++ b/zsnes/src/ui.asm
@@ -1412,7 +1412,7 @@ SECTION .data
           db '  -e      Skip enter key press at the beginning',13,10
 %endif
           db '  -f #    Turn on frame skip [0..9]',13,10
-          db '  -g #    Set Gamma Correction [0...31, 0 = 1.0, 31 = 2.0]',13,10
+          db '  -g #    Set Gamma Correction [0...15, 0 = 1.0, 15 = 2.0]',13,10
 %ifndef __LINUX__
           db '            - Only works properly in 256 color video modes',13,10
 %endif