diff --git a/src/northbridge/amd/gx2/northbridgeinit.c b/src/northbridge/amd/gx2/northbridgeinit.c
index 7053f5e5d9..65aa1b5cc2 100644
--- a/src/northbridge/amd/gx2/northbridgeinit.c
+++ b/src/northbridge/amd/gx2/northbridgeinit.c
@@ -672,7 +672,7 @@ shadowRom(void)
 {
 	uint64_t shadowSettings = getShadow();
 	shadowSettings &= (uint64_t) 0xFFFF00000000FFFFULL;	// Disable read & writes
-	shadowSettings |= (uint64_t) 0x00000000F0000000ULL;	// Enable reads for F0000-FFFFF
+	shadowSettings |= (uint64_t) 0x0000FFFFFFFF0000ULL;	// Enable reads for C0000-FFFFF
 	setShadow(shadowSettings);
 }