diff --git a/src/mame/machine/pgmcrypt.c b/src/mame/machine/pgmcrypt.c
index 014dc89e8ec..bca2ddb4382 100644
--- a/src/mame/machine/pgmcrypt.c
+++ b/src/mame/machine/pgmcrypt.c
@@ -709,7 +709,7 @@ void pgm_svg_decrypt(running_machine &machine)
 	}
 }
 
-static const unsigned char svgpcb_tab[0x100] = { // not checked
+static const unsigned char svgpcb_tab[0x100] = {
 		0x49, 0x47, 0x53, 0x30, 0x30, 0x31, 0x37, 0x52, 0x44, 0x31, 0x30, 0x35, 0x30, 0x35, 0x30, 0x34,
 		0x75, 0x0B, 0xF1, 0x6B, 0x6D, 0xD7, 0xA8, 0xE7, 0x0C, 0xC5, 0x28, 0x81, 0x1F, 0xCF, 0x30, 0x15,
 		0xA8, 0x0D, 0xDA, 0x76, 0xF8, 0x7D, 0xD6, 0xE1, 0x0A, 0x11, 0xE3, 0xA4, 0x23, 0xFF, 0x8E, 0x0B,
@@ -738,9 +738,8 @@ void pgm_svgpcb_decrypt(running_machine &machine)
 	for (i = 0; i < rom_size/2; i++) {
 		UINT16 x = src[i];
 
-		// preliminary!
 		IGS27_CRYPT1_ALT; // ok?
-		IGS27_CRYPT2_ALT3
+		IGS27_CRYPT2 // ok?
 		IGS27_CRYPT3
 		IGS27_CRYPT4 // ok?
 		IGS27_CRYPT5  // ok?