diff --git a/src/math/polysat/smul_fl_constraint.cpp b/src/math/polysat/smul_fl_constraint.cpp
index cd6e20aec..c529479e2 100644
--- a/src/math/polysat/smul_fl_constraint.cpp
+++ b/src/math/polysat/smul_fl_constraint.cpp
@@ -126,5 +126,7 @@ namespace polysat {
             us.add_smul_ovfl(p_coeff, q_coeff, !is_positive, dep);
         else
             us.add_smul_udfl(p_coeff, q_coeff, !is_positive, dep);
+    	return mk_mix(p().hash(), q().hash(), kind());
     }
+
 }