diff --git a/libreoffice.spec b/libreoffice.spec
index 4ed1a57..74cfc57 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -218,6 +218,9 @@ to be written in python.
 Summary: Database front-end for LibreOffice
 Group: Applications/Productivity
 Requires: postgresql-jdbc
+%if %{defined rhel} && 0%{?rhel} < 7
+Requires:  hsqldb
+%endif
 Requires: %{name}-ure = %{epoch}:%{version}-%{release}
 Requires: %{name}-core = %{epoch}:%{version}-%{release}
 Requires: %{name}-calc = %{epoch}:%{version}-%{release}