diff --git a/src/project.conf b/src/project.conf
index c45dec2..d5762af 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -4,7 +4,7 @@ cppflags_force=-I $(PREFIX)/include
 cflags_force=-W `pkg-config --cflags libDesktop poppler-glib`
 cflags=-Wall -g -O2 -pedantic -fPIE -D_FORTIFY_SOURCE=2 -fstack-protector-all
 ldflags_force=`pkg-config --libs libDesktop poppler-glib` -lm
-ldflags=-pie
+ldflags=-pie -Wl,-z,relro -Wl,-z,now
 dist=Makefile,callbacks.h,pdfviewer.h
 
 [pdfviewer]