diff --git a/src/rstd/singular.rs b/src/rstd/singular.rs
index 3295537..ed5a4ca 100644
--- a/src/rstd/singular.rs
+++ b/src/rstd/singular.rs
@@ -40,7 +40,7 @@ pub struct SingularResolver<'a, Ctx: Context<'a>> {
     points: Vec<Arc<dyn SingularResolution<'a, Ctx>>>,
 }
 
-pub struct SingularRobust<'a, Ctx: Context<'a>> {
+struct SingularRobust<'a, Ctx: Context<'a>> {
     resolver: Arc<SingularResolver<'a, Ctx>>,
 }
 
@@ -105,6 +105,16 @@ impl<'a, Ctx: Context<'a>> SingularResolver<'a, Ctx> {
             Ok(point.clone().singular())
         }
     }
+
+    pub fn robust(self) -> Arc<dyn Resolver<'a, Ctx>>
+    where
+        Ctx: SingularCtx<'a>,
+    {
+        SingularRobust {
+            resolver: self.into(),
+        }
+        .into_rc()
+    }
 }
 
 impl<'a, Ctx: Context<'a>> Resolver<'a, Ctx> for SingularResolver<'a, Ctx> {
@@ -113,7 +123,7 @@ impl<'a, Ctx: Context<'a>> Resolver<'a, Ctx> for SingularResolver<'a, Ctx> {
     }
 }
 
-trait SingularCtx<'a>: Context<'a> {
+pub trait SingularCtx<'a>: Context<'a> {
     fn from_singular(error: SingularError) -> Self::LookupError;
 }