diff --git a/src/mainboard/lenovo/t60/mainboard_smi.c b/src/mainboard/lenovo/t60/mainboard_smi.c
index 5e0f6a98b0..30c2420f9c 100644
--- a/src/mainboard/lenovo/t60/mainboard_smi.c
+++ b/src/mainboard/lenovo/t60/mainboard_smi.c
@@ -68,11 +68,11 @@ int mainboard_io_trap_handler(int smif)
 		break;
 
 	default:
-		return 1;
+		return 0;
 	}
 
-	/* On success, the IO Trap Handler returns 0
-	 * On failure, the IO Trap Handler returns a value != 0 */
-	return 0;
+	/* On success, the IO Trap Handler returns 1
+	 * On failure, the IO Trap Handler returns a value != 1 */
+	return 1;
 }
 
diff --git a/src/mainboard/lenovo/x60/mainboard_smi.c b/src/mainboard/lenovo/x60/mainboard_smi.c
index 78f7f2a4f6..d13055ee70 100644
--- a/src/mainboard/lenovo/x60/mainboard_smi.c
+++ b/src/mainboard/lenovo/x60/mainboard_smi.c
@@ -68,10 +68,10 @@ int mainboard_io_trap_handler(int smif)
 		break;
 
 	default:
-		return 1;
+		return 0;
 	}
 
-	/* On success, the IO Trap Handler returns 0
-	 * On failure, the IO Trap Handler returns a value != 0 */
-	return 0;
+	/* On success, the IO Trap Handler returns 1
+	 * On failure, the IO Trap Handler returns a value != 1 */
+	return 1;
 }