Index: src/newgrf.cpp
===================================================================
--- src/newgrf.cpp	(revision 27118)
+++ src/newgrf.cpp	(working copy)
@@ -6095,7 +6095,7 @@
 
 			case 0x0A: // GRFID is not nor will be active
 				/* This is the only condtype that doesn't get ignored if the GRFID is not found */
-				result = c == NULL || c->flags == GCS_DISABLED || c->status == GCS_NOT_FOUND;
+				result = c == NULL || c->status == GCS_DISABLED || c->status == GCS_NOT_FOUND;
 				break;
 
 			default: grfmsg(1, "SkipIf: Unsupported GRF condition type %02X. Ignoring", condtype); return;