diff --git a/src/include/access/tableam.h b/src/include/access/tableam.h
index bf3a4720183..af1dcfb8e2c 100644
--- a/src/include/access/tableam.h
+++ b/src/include/access/tableam.h
@@ -33,7 +33,6 @@ extern bool synchronize_seqscans;
 
 struct BulkInsertStateData;
 struct IndexInfo;
-struct IndexBuildCallback;
 struct SampleScanState;
 struct TBMIterateResult;
 struct VacuumParams;