diff --git a/src/runtime/c/pgf/data.h b/src/runtime/c/pgf/data.h
index d97b0b49d..45f060c23 100644
--- a/src/runtime/c/pgf/data.h
+++ b/src/runtime/c/pgf/data.h
@@ -192,7 +192,6 @@ struct PgfConcr {
 	PgfFlags* cflags;
 	PgfPrintNames* printnames;
     GuMap* ccats;
-	PgfCCatSeq extra_ccats;
 	PgfFunIndices* fun_indices;
 	PgfCoerceIdx* coerce_idx;
     PgfCncFuns* cncfuns;