diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs
index e06ca59771e61..f0dffd8829da3 100644
--- a/compiler/rustc_resolve/src/build_reduced_graph.rs
+++ b/compiler/rustc_resolve/src/build_reduced_graph.rs
@@ -60,7 +60,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> {
         }
     }
 
-    /// Create a name definitinon from the given components, and put it into the local module.
+    /// Create a name definition from the given components, and put it into the local module.
     fn define_local(
         &mut self,
         parent: Module<'ra>,
@@ -76,7 +76,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> {
         self.plant_decl_into_local_module(ident, orig_ident.span, ns, decl);
     }
 
-    /// Create a name definitinon from the given components, and put it into the extern module.
+    /// Create a name definition from the given components, and put it into the extern module.
     fn define_extern(
         &self,
         parent: Module<'ra>,
diff --git a/typos.toml b/typos.toml
index 920234a9381bc..578f327862fb5 100644
--- a/typos.toml
+++ b/typos.toml
@@ -20,6 +20,7 @@ arange = "arange"
 childs = "childs"
 clonable = "clonable"
 Datas = "Datas"
+definitinon = "definition"
 filetimes = "filetimes"
 leafs = "leafs"
 makro = "makro"