diff --git a/libOTe/Tools/Pprf/RegularPprf.h b/libOTe/Tools/Pprf/RegularPprf.h
index 78c7245..8e2bd6a 100644
--- a/libOTe/Tools/Pprf/RegularPprf.h
+++ b/libOTe/Tools/Pprf/RegularPprf.h
@@ -285,8 +285,8 @@ namespace osuCrypto
 
 				// The next level of theGGM tree that we are populating.
 				auto children = levels[d + 1]; 
-				assert((u64)level0.data() % sizeof(block) == 0 && "levels requires aligment");
-				assert((u64)level1.data() % sizeof(block) == 0 && "levels requires aligment");
+				assert((u64)parents.data() % sizeof(block) == 0 && "levels requires aligment");
+				assert((u64)children.data() % sizeof(block) == 0 && "levels requires aligment");
 
 
 				// For each child, populate the child by expanding the parent.