diff --git a/arch/m68k/include/asm/entry.h b/arch/m68k/include/asm/entry.h
index 5d8b21c713e2e645e77c6ebb9a087d0341c780fc..d7de0f1a8957b2d5669f475cd073ea12cbffd3ba 100644
--- a/arch/m68k/include/asm/entry.h
+++ b/arch/m68k/include/asm/entry.h
@@ -33,8 +33,8 @@
 
 /* the following macro is used when enabling interrupts */
 #if defined(MACH_ATARI_ONLY)
-	/* block out HSYNC on the atari */
-#define ALLOWINT	(~0x400)
+	/* block out HSYNC = ipl 2 on the atari */
+#define ALLOWINT	(~0x500)
 #else
 	/* portable version */
 #define ALLOWINT	(~0x700)