diff --git a/redhat/applications/abakus/abakus-14.0.0.spec b/redhat/applications/abakus/abakus-14.0.0.spec
index 618eeaf38..0208dd0fa 100644
--- a/redhat/applications/abakus/abakus-14.0.0.spec
+++ b/redhat/applications/abakus/abakus-14.0.0.spec
@@ -79,6 +79,10 @@ BuildRequires:	libidn-devel
 BuildRequires:	gamin-devel
 %endif
 
+# OPENSSL support
+BuildRequires:	openssl-devel
+
+
 %description
 AbaKus is a complex calculator, which provides
 many different kinds of calculations.