diff --git a/tests/mos6502.addr.c b/tests/mos6502.addr.c
index ebb1d8c..7dd7c6a 100644
--- a/tests/mos6502.addr.c
+++ b/tests/mos6502.addr.c
@@ -42,7 +42,7 @@ Test(mos6502_addr, addr_mode_abx_carry1)
     mos6502_set(cpu, 0x1234, 111);
     SET_PC_BYTE(cpu, 1, 0x30);
     SET_PC_BYTE(cpu, 2, 0x12);
-    cpu->X = 3;
+    cpu->X = 4;
     cr_assert_eq(mos6502_resolve_abx(cpu), 111);
 }
 
@@ -61,7 +61,7 @@ Test(mos6502_addr, addr_mode_aby_carry1)
     mos6502_set(cpu, 0x1234, 111);
     SET_PC_BYTE(cpu, 1, 0x30);
     SET_PC_BYTE(cpu, 2, 0x12);
-    cpu->Y = 3;
+    cpu->Y = 4;
     cr_assert_eq(mos6502_resolve_aby(cpu), 111);
 }