diff --git a/src/solver_impl.rs b/src/solver_impl.rs
index 2061a47..3fbb70a 100644
--- a/src/solver_impl.rs
+++ b/src/solver_impl.rs
@@ -759,7 +759,8 @@ impl<T: Any + Debug + Clone + Eq + Hash> Solver<T> {
     fn remove_constraint_effects(&mut self, cn: &Constraint<T>, tag: &Tag) {
         if tag.marker.type_() == SymbolType::Error {
             self.remove_marker_effects(tag.marker, cn.strength());
-        } else if tag.other.type_() == SymbolType::Error {
+        }
+        if tag.other.type_() == SymbolType::Error {
             self.remove_marker_effects(tag.other, cn.strength());
         }
     }