diff -Naur openttd-1.11.0/src/spritecache.cpp openttd-1.11.0.serenity/src/spritecache.cpp
--- openttd-1.11.0/src/spritecache.cpp	2021-04-01 14:33:44.000000000 +0200
+++ openttd-1.11.0.serenity/src/spritecache.cpp	2021-04-18 21:03:15.916430052 +0200
@@ -915,6 +915,7 @@
 	/* Remember 'target_size' from the previous allocation attempt, so we do not try to reach the target_size multiple times in case of failure. */
 	static uint last_alloc_attempt = 0;
 
+#ifndef __serenity__
 	if (_spritecache_ptr == nullptr || (_allocated_sprite_cache_size != target_size && target_size != last_alloc_attempt)) {
 		delete[] reinterpret_cast<byte *>(_spritecache_ptr);
 
@@ -950,6 +951,10 @@
 			ScheduleErrorMessage(msg);
 		}
 	}
+#else
+    _allocated_sprite_cache_size = target_size / 5;
+    _spritecache_ptr = reinterpret_cast<MemBlock *>(new byte[_allocated_sprite_cache_size]);
+#endif
 
 	/* A big free block */
 	_spritecache_ptr->size = (_allocated_sprite_cache_size - sizeof(MemBlock)) | S_FREE_MASK;