diff --git a/src/Makefile b/src/Makefile
index 251b774..7410fae 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,7 +3,7 @@ PREFIX	= /usr/local
 DESTDIR	= 
 BINDIR	= $(PREFIX)/bin
 CC	= cc
-CPPFLAGSF=
+CPPFLAGSF= -I $(PREFIX)/include
 CPPFLAGS=
 CFLAGSF	= -W `pkg-config gtk+-2.0 --cflags`
 CFLAGS	= -Wall -g -O2 -pedantic
diff --git a/src/project.conf b/src/project.conf
index 7a3ac46..775feaa 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -1,4 +1,5 @@
 targets=todo
+cppflags_force=-I $(PREFIX)/include
 #cppflags=-D EMBEDDED
 cflags_force=-W `pkg-config gtk+-2.0 --cflags`
 cflags=-Wall -g -O2 -pedantic