diff --git a/src/makefile b/src/makefile
index 494baab..fb56ba4 100644
--- a/src/makefile
+++ b/src/makefile
@@ -177,6 +177,6 @@ DEF_linux=-DLUASOCKET_$(DEBUG) \
-CFLAGS_linux=$(LUAINC:%=-I%) $(DEF) -Wall -Wshadow -Wextra \
-	-Wimplicit -O2 -ggdb3 -fpic
-LDFLAGS_linux=-O -shared -fpic -o
+CFLAGS_linux=$(LUAINC:%=-I%) $(DEF) $(OPTFLAGS) -Wall -Wshadow -Wextra \
+	-Wimplicit -fpic -fvisibility=hidden
+LDFLAGS_linux=-O $(OPTFLAGS) -shared -fpic -o 
 LD_linux=gcc
 SOCKET_linux=usocket.o