diff --git a/src/openrct2-ui/scripting/CustomImages.cpp b/src/openrct2-ui/scripting/CustomImages.cpp
index 100cb02b57..06eb998e17 100644
--- a/src/openrct2-ui/scripting/CustomImages.cpp
+++ b/src/openrct2-ui/scripting/CustomImages.cpp
@@ -292,6 +292,7 @@ namespace OpenRCT2::Scripting
 
                 // Make sure data is expected size
                 data.resize(pixelData.Width * pixelData.Height);
+                imageData = std::move(data);
                 break;
             }
             case PixelDataKind::Rle: