diff --git a/gfx/drivers/ps2_gfx.c b/gfx/drivers/ps2_gfx.c
index 5080fde489..39a9053793 100644
--- a/gfx/drivers/ps2_gfx.c
+++ b/gfx/drivers/ps2_gfx.c
@@ -45,7 +45,7 @@ static GSGLOBAL *init_GSGlobal(void) {
 	GSGLOBAL *gsGlobal = gsKit_init_global();
 
       gsGlobal->PSM = GS_PSM_CT16;
-	gsGlobal->PSMZ = GS_PSMZ_16S;
+	gsGlobal->PSMZ = GS_PSMZ_16;
 	gsGlobal->DoubleBuffering = GS_SETTING_OFF;
 	gsGlobal->ZBuffering = GS_SETTING_OFF;
       gsGlobal->PrimAlphaEnable = GS_SETTING_OFF;
@@ -98,7 +98,7 @@ static void color_correction16(uint16_t *buffer, uint32_t dimensions)
     uint16_t x16;
     for (i = 0; i < dimensions; i++) {
       x16 = buffer[i];
-      buffer[i] = (x16 & 0x8000) | ((x16 << 10) & 0x7C00) | (x16 & 0x3E0) | ((x16 >> 10) & 0x1F);
+      buffer[i] = (x16 & 0x8000) | ((x16 << 10) & 0x7C00) | ((x16 >> 1) & 0x3E0) | ((x16 >> 11) & 0x1F);
     }
 }