diff --git a/Makefile b/Makefile
index f2d59eb..e4526b6 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ PG91         = $(shell $(PG_CONFIG) --version | grep -qE " 8\.| 9\.0" && echo no
 
 TESTS        = $(wildcard test/sql/*.sql)
 REGRESS      = $(patsubst test/sql/%.sql,%,$(TESTS))
-REGRESS_OPTS = --inputdir=test --load-language=plpgsql
+REGRESS_OPTS = --inputdir=test
 
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)