diff --git a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-HF-TZ.inp b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-HF-TZ.inp
index 3a6937e717..4bcad7ae8d 100644
--- a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-HF-TZ.inp
+++ b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-HF-TZ.inp
@@ -72,6 +72,7 @@
 &GLOBAL
   PROJECT     H2O-32-HF-TZ
   RUN_TYPE    ENERGY
+  PREFERRED_DIAG_LIBRARY SL
   PRINT_LEVEL MEDIUM
 &END GLOBAL
 
diff --git a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-PBE-TZ.inp b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-PBE-TZ.inp
index 718c902544..35d07487d4 100644
--- a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-PBE-TZ.inp
+++ b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-PBE-TZ.inp
@@ -56,6 +56,7 @@
 &GLOBAL
   PROJECT     H2O-32-PBE-TZ
   RUN_TYPE    ENERGY
+  PREFERRED_DIAG_LIBRARY SL
   PRINT_LEVEL MEDIUM
 &END GLOBAL
 
diff --git a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-MP2-TZ.inp b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-MP2-TZ.inp
index 82d0e7e5c7..c30b24643e 100644
--- a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-MP2-TZ.inp
+++ b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-MP2-TZ.inp
@@ -85,6 +85,7 @@
 &GLOBAL
   PROJECT     H2O-32-RI-MP2-TZ
   RUN_TYPE    ENERGY
+  PREFERRED_DIAG_LIBRARY SL
   PRINT_LEVEL MEDIUM
 &END GLOBAL
 
diff --git a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-dRPA-TZ.inp b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-dRPA-TZ.inp
index 72a6f380e3..c6ac06d2a5 100644
--- a/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-dRPA-TZ.inp
+++ b/benchmarks/QS_mp2_rpa/32-H2O/H2O-32-RI-dRPA-TZ.inp
@@ -72,6 +72,7 @@
 &GLOBAL
   PROJECT     H2O-32-RI-RPA-TZ
   RUN_TYPE    ENERGY
+  PREFERRED_DIAG_LIBRARY SL
   PRINT_LEVEL MEDIUM
 &END GLOBAL