diff --git a/src/openrct2/localisation/Localisation.cpp b/src/openrct2/localisation/Localisation.cpp
index fcaf9b28a6..b157518c7a 100644
--- a/src/openrct2/localisation/Localisation.cpp
+++ b/src/openrct2/localisation/Localisation.cpp
@@ -1513,7 +1513,7 @@ money32 string_to_money(const char* string_to_monetise)
 
     auto number = std::stod(processedString, nullptr);
     number /= (currencyDesc->rate / 10.0);
-    auto whole = static_cast<uint16_t>(number);
+    auto whole = static_cast<int32_t>(number);
     auto fraction = static_cast<uint8_t>(ceil((number - whole) * 100.0));
 
     money32 result = MONEY(whole, fraction);