diff --git a/src/mlpack/methods/rann/ra_model_impl.hpp b/src/mlpack/methods/rann/ra_model_impl.hpp
index 093ce74d10..7e4753603c 100644
--- a/src/mlpack/methods/rann/ra_model_impl.hpp
+++ b/src/mlpack/methods/rann/ra_model_impl.hpp
@@ -222,7 +222,7 @@ bool& SingleModeVisitor::operator()(RAType* ra) const
 {
   if (ra)
     return ra->SingleMode();
-  throw std::runtime_error("no rank-approximate model is intialized");
+  throw std::runtime_error("no rank-approximate model is initialized");
 }
 
 //! Exposes the referenceSet of the given RAType.
@@ -231,7 +231,7 @@ const arma::mat& ReferenceSetVisitor::operator()(RAType* ra) const
 {
   if (ra)
     return ra->ReferenceSet();
-  throw std::runtime_error("no rank-approximate model is intialized");
+  throw std::runtime_error("no rank-approximate model is initialized");
 }
 
 //! Exposes the Naive() method of the given RAType instance.
@@ -240,7 +240,7 @@ bool& NaiveVisitor::operator()(RAType* ra) const
 {
   if (ra)
     return ra->Naive();
-  throw std::runtime_error("no rank-approximate search model is intialized");
+  throw std::runtime_error("no rank-approximate search model is initialized");
 }
 
 //! For cleaning memory