diff --git a/src/core/settings.h b/src/core/settings.h
index bb5aafa0c3..29ce989830 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -351,10 +351,11 @@ struct Values {
     bool use_docked_mode;
     bool enable_nfc;
     std::optional<u32> rng_seed;
-    std::optional<std::chrono::seconds> custom_rtc; // Measured in seconds since epoch
-    std::chrono::seconds
-        custom_rtc_differential; // Set on game boot, reset on stop. Seconds difference between
-                                 // current time and `custom_rtc`
+    // Measured in seconds since epoch
+    std::optional<std::chrono::seconds> custom_rtc;
+    // Set on game boot, reset on stop. Seconds difference between current time and `custom_rtc`
+    std::chrono::seconds custom_rtc_differential;
+
     s32 current_user;
     s32 language_index;
 
diff --git a/src/yuzu/configuration/config.cpp b/src/yuzu/configuration/config.cpp
index 6c5284db5f..ddf4cf552a 100644
--- a/src/yuzu/configuration/config.cpp
+++ b/src/yuzu/configuration/config.cpp
@@ -663,7 +663,8 @@ void Config::SaveValues() {
 
     qt_config->setValue("custom_rtc_enabled", Settings::values.custom_rtc.has_value());
     qt_config->setValue("custom_rtc",
-                        Settings::values.custom_rtc.value_or(std::chrono::seconds{}).count());
+                        QVariant::fromValue<long long>(
+                            Settings::values.custom_rtc.value_or(std::chrono::seconds{}).count()));
 
     qt_config->endGroup();