diff --git a/redhat/applications/kchmviewer/kchmviewer-14.0.0.spec b/redhat/applications/kchmviewer/kchmviewer-14.0.0.spec
index e3d2c8d1f..dca19c1d4 100644
--- a/redhat/applications/kchmviewer/kchmviewer-14.0.0.spec
+++ b/redhat/applications/kchmviewer/kchmviewer-14.0.0.spec
@@ -75,6 +75,9 @@ BuildRequires:	update-desktop-files
 BuildRequires:	brp-check-trinity
 %endif
 
+# CHMLIB support
+BuildRequires:	chmlib-devel
+
 
 %description
 KchmViewer is a chm (MS HTML help file format) viewer, written in C++.