diff --git a/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild b/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
index 23f7d80736..fd6d8db209 100644
--- a/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
+++ b/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
@@ -19,6 +19,7 @@ SLOT="0"
 
 DEPEND="
 	~sys-cluster/Graph500-1.2
+	sys-cluster/psort
 	sys-cluster/usort
 	virtual/mpi
 "