--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,5 @@ EXTENSION = pg_background
 DATA = pg_background--1.4.sql pg_background--1.0--1.4.sql pg_background--1.1--1.4.sql pg_background--1.2--1.4.sql pg_background--1.3--1.4.sql
 REGRESS = pg_background
 
-PG_CONFIG = pg_config
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)