diff --git a/extra/avogadro/PKGBUILD b/extra/avogadro/PKGBUILD
index 052fa61d7..fa1d2379b 100644
--- a/extra/avogadro/PKGBUILD
+++ b/extra/avogadro/PKGBUILD
@@ -8,7 +8,7 @@
 
 pkgname=avogadro
 pkgver=1.1.1
-pkgrel=6
+pkgrel=7
 pkgdesc="An advanced molecular editor based on Qt"
 arch=('i686' 'x86_64')
 url="http://avogadro.openmolecules.net/wiki/Main_Page"
@@ -34,7 +34,7 @@ prepare() {
 build() {
   cd build
 
-  export CXXFLAGS="$CXXFLAGS -lX11"
+  export CXXFLAGS="$CXXFLAGS -lX11 -lopenbabel"
   cmake ../${pkgname}-${pkgver} \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_INSTALL_PREFIX=/usr \