diff --git a/src/project.conf b/src/project.conf
index b12ab66..a7688f4 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -1,7 +1,7 @@
 targets=libDesktop
 cppflags_force=-I ../include
 cflags_force=-W `pkg-config --cflags libSystem gtk+-2.0`
-cflags=-Wall -g -O2 -fPIC -pedantic
+cflags=-Wall -g -O2 -fPIC -pedantic -fstack-protector
 ldflags_force=`pkg-config --libs libSystem gtk+-2.0`
 dist=Makefile
 
diff --git a/tests/project.conf b/tests/project.conf
index 0f6bc61..6320066 100644
--- a/tests/project.conf
+++ b/tests/project.conf
@@ -1,7 +1,7 @@
 targets=widget
 cppflags_force=-I ../include
 cflags_force=-W `pkg-config --cflags libSystem gtk+-2.0`
-cflags=-Wall -g -O2 -pedantic
+cflags=-Wall -g -O2 -pedantic -fstack-protector
 ldflags_force=`pkg-config --libs libSystem gtk+-2.0`
 ldflags=$(OBJDIR)../src/libDesktop.a
 dist=Makefile
diff --git a/tools/project.conf b/tools/project.conf
index 0f6bc61..6320066 100644
--- a/tools/project.conf
+++ b/tools/project.conf
@@ -1,7 +1,7 @@
 targets=widget
 cppflags_force=-I ../include
 cflags_force=-W `pkg-config --cflags libSystem gtk+-2.0`
-cflags=-Wall -g -O2 -pedantic
+cflags=-Wall -g -O2 -pedantic -fstack-protector
 ldflags_force=`pkg-config --libs libSystem gtk+-2.0`
 ldflags=$(OBJDIR)../src/libDesktop.a
 dist=Makefile