diff --git a/gammaray.spec b/gammaray.spec
index 961775a..211a6f2 100644
--- a/gammaray.spec
+++ b/gammaray.spec
@@ -31,6 +31,7 @@ BuildRequires:  kcoreaddons-devel
 # include this so the icon folders don't need to be owned by the package
 BuildRequires:  doxygen
 BuildRequires:  graphviz-devel
+BuildRequires:  graphviz-gnome
 BuildRequires:  hicolor-icon-theme
 BuildRequires:  libQt5Core-private-headers-devel >= 5.2.0
 BuildRequires:  libQt5Gui-private-headers-devel >= 5.2.0