diff --git a/freecad.spec b/freecad.spec
index 9e5e53b..1c12b53 100644
--- a/freecad.spec
+++ b/freecad.spec
@@ -17,6 +17,7 @@ BuildRequires:	gcc-gfortran
 BuildRequires:	python-matplotlib
 BuildRequires:	pyside-tools
 BuildRequires:	boost-devel >= 1.33.1
+BuildRequires:	libspnav-devel
 BuildRequires:	opencascade-devel >= 5.2
 BuildRequires:	qt4-devel
 BuildRequires:	pkgconfig(glu)