diff --git a/COPASI.spec b/COPASI.spec
index b1e93ac..ed5158c 100644
--- a/COPASI.spec
+++ b/COPASI.spec
@@ -77,6 +77,7 @@ BuildRequires: qt-webkit-devel
 BuildRequires: libkdeedu-static
 BuildRequires: libsbml-devel
 BuildRequires: libsedml-devel >= 1:0.4.3-3
+BuildRequires: libnuml-devel
 BuildRequires: libsbw-devel
 BuildRequires: raptor-devel
 BuildRequires: mesa-libGL-devel