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-rw-r--r--src/newgrf_config.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/newgrf_config.cpp b/src/newgrf_config.cpp
index 5e3d29439..0f6623f64 100644
--- a/src/newgrf_config.cpp
+++ b/src/newgrf_config.cpp
@@ -420,8 +420,8 @@ bool FillGRFDetails(GRFConfig *config, bool is_static, Subdirectory subdir)
config->SetSuitablePalette();
config->FinalizeParameterInfo();
- /* Skip if the grfid is 0 (not read) or 0xFFFFFFFF (ttdp system grf) */
- if (config->ident.grfid == 0 || config->ident.grfid == 0xFFFFFFFF || config->IsOpenTTDBaseGRF()) return false;
+ /* Skip if the grfid is 0 (not read) or if it is an internal GRF */
+ if (config->ident.grfid == 0 || HasBit(config->flags, GCF_SYSTEM)) return false;
if (is_static) {
/* Perform a 'safety scan' for static GRFs */