diff --git a/cta.spec.in b/cta.spec.in
index 03c44d7fa2dd11a668e7a984a8a1226e3c7783bf..ffdf5a66045aef3102f7bcec0699bc44950e56f0 100644
--- a/cta.spec.in
+++ b/cta.spec.in
@@ -137,6 +137,7 @@ The shared libraries
 %package -n cta-systemtests
 Summary: CERN Tape Archive: unit and system tests with virtual tape drives
 Group: Application/CTA
+Requires: oracle-instantclient12.1-basic
 Requires: valgrind >= 3.8.1
 Requires: cta-taped = %{ctaVersion}-%{ctaRelease}%{mydist}
 %description -n cta-systemtests