diff --git a/Core/gb.c b/Core/gb.c
index 38e3cd081..90a1804c2 100644
--- a/Core/gb.c
+++ b/Core/gb.c
@@ -1705,7 +1705,7 @@ static void GB_reset_internal(GB_gameboy_t *gb, bool quick)
     GB_update_clock_rate(gb);
     uint8_t rtc_section[GB_SECTION_SIZE(rtc)];
     memcpy(rtc_section, GB_GET_SECTION(gb, rtc), sizeof(rtc_section));
-    memset(gb, 0, (size_t)GB_GET_SECTION((GB_gameboy_t *) 0, unsaved));
+    memset(gb, 0, GB_SECTION_OFFSET(unsaved));
     memcpy(GB_GET_SECTION(gb, rtc), rtc_section, sizeof(rtc_section));
     gb->model = model;
     gb->version = GB_STRUCT_VERSION;