diff --git a/src/openrct2/rct1/Csg.cpp b/src/openrct2/rct1/Csg.cpp
index 7d0399cd80..a9845b5905 100644
--- a/src/openrct2/rct1/Csg.cpp
+++ b/src/openrct2/rct1/Csg.cpp
@@ -62,7 +62,7 @@ bool RCT1DataPresentAtLocation(u8string_view path)
 
 bool CsgIsUsable(const Gx& csg)
 {
-    return csg.header.total_size == RCT1::Limits::kLlCsg1DatFileSize
+    return csg.header.total_size == RCT1::Limits::kLLCsg1DatFileSize
         && csg.header.num_entries == RCT1::Limits::kNumLLCsgEntries;
 }
 
diff --git a/src/openrct2/rct1/Limits.h b/src/openrct2/rct1/Limits.h
index 5456dd4195..e431f43c8a 100644
--- a/src/openrct2/rct1/Limits.h
+++ b/src/openrct2/rct1/Limits.h
@@ -22,7 +22,7 @@ namespace RCT1::Limits
     constexpr uint8_t kMaxBanners = 100;
     constexpr int32_t kCoordsZStep = 4;
     constexpr uint32_t kNumLLCsgEntries = 69917;
-    constexpr uint32_t kLlCsg1DatFileSize = 41402869;
+    constexpr uint32_t kLLCsg1DatFileSize = 41402869;
     constexpr uint32_t kNumTerrainSurfaces = 16;
     constexpr uint32_t kNumTerrainEdges = 15;
 } // namespace RCT1::Limits