diff --git a/src/pl/plpgsql/src/pl_exec.c b/src/pl/plpgsql/src/pl_exec.c
index dd575e7..9b85df8 100644
--- a/src/pl/plpgsql/src/pl_exec.c
+++ b/src/pl/plpgsql/src/pl_exec.c
@@ -3727,8 +3727,6 @@ exec_stmt_execsql(PLpgSQL_execstate *estate,
 			break;
 
 		case SPI_OK_REWRITTEN:
-			Assert(!stmt->mod_stmt);
-
 			/*
 			 * The command was rewritten into another kind of command. It's
 			 * not clear what FOUND would mean in that case (and SPI doesn't