diff --git a/freeglut/freeglut/progs/demos/Fractals/Makefile.am b/freeglut/freeglut/progs/demos/Fractals/Makefile.am
index 4ea7b7d..5b5cb53 100644
--- a/freeglut/freeglut/progs/demos/Fractals/Makefile.am
+++ b/freeglut/freeglut/progs/demos/Fractals/Makefile.am
@@ -2,4 +2,4 @@ EXTRA_DIST = Fractals.dsp fractals.c fractals.dat
 bin_PROGRAMS = fractals
 fractals_SOURCES = fractals.c
 fractals_LDFLAGS = -export-dynamic ../../../src/libglut.la
-fractals_CFLAGS = $(X_CFLAGS)
+fractals_CFLAGS = -I../../../include $(X_CFLAGS)
diff --git a/freeglut/freeglut/progs/demos/Fractals_random/Makefile.am b/freeglut/freeglut/progs/demos/Fractals_random/Makefile.am
index 83586c2..778519c 100644
--- a/freeglut/freeglut/progs/demos/Fractals_random/Makefile.am
+++ b/freeglut/freeglut/progs/demos/Fractals_random/Makefile.am
@@ -3,4 +3,4 @@ EXTRA_DIST = Fractals_random.dsp fractals.dat fractals_random.c
 bin_PROGRAMS = fractals_random
 fractals_random_SOURCES = fractals_random.c
 fractals_random_LDFLAGS = -export-dynamic ../../../src/libglut.la
-fractals_random_CFLAGS = $(X_CFLAGS)
+fractals_random_CFLAGS = -I../../../include $(X_CFLAGS)
diff --git a/freeglut/freeglut/progs/demos/Lorenz/Makefile.am b/freeglut/freeglut/progs/demos/Lorenz/Makefile.am
index 627b811..ef38bd6 100644
--- a/freeglut/freeglut/progs/demos/Lorenz/Makefile.am
+++ b/freeglut/freeglut/progs/demos/Lorenz/Makefile.am
@@ -3,4 +3,4 @@ EXTRA_DIST = lorenz.c lorenz.dsp
 bin_PROGRAMS = lorenz
 lorenz_SOURCES = lorenz.c
 lorenz_LDFLAGS = -export-dynamic ../../../src/libglut.la
-lorenz_CFLAGS = $(X_CFLAGS)
+lorenz_CFLAGS = -I../../../include $(X_CFLAGS)
diff --git a/freeglut/freeglut/progs/demos/One/Makefile.am b/freeglut/freeglut/progs/demos/One/Makefile.am
index cb606a4..19787d2 100644
--- a/freeglut/freeglut/progs/demos/One/Makefile.am
+++ b/freeglut/freeglut/progs/demos/One/Makefile.am
@@ -2,4 +2,4 @@ EXTRA_DIST = one.c one.dsp
 bin_PROGRAMS = one
 one_SOURCES = one.c
 one_LDFLAGS = -export-dynamic ../../../src/libglut.la
-one_CFLAGS = $(X_CFLAGS)
+one_CFLAGS = -I../../../include $(X_CFLAGS)