diff --git a/Makefile b/Makefile
index dbeb729..567178b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
 LIBDIR=/usr/lib
 
 install:
-	gcc -Wall -I/usr/include/mysql -I. -shared lib_mysqludf_sys.c -o $(LIBDIR)/lib_mysqludf_sys.so
+	gcc -DMYSQL_DYNAMIC_PLUGIN -fPIC -Wall -I/usr/include/mysql -I. -shared lib_mysqludf_sys.c -o $(LIBDIR)/lib_mysqludf_sys.so