diff --git a/src/error/mod.rs b/src/error/mod.rs
index 34c4730..2a7308c 100644
--- a/src/error/mod.rs
+++ b/src/error/mod.rs
@@ -214,7 +214,7 @@ pub enum EvalexprError {
     /// This context does not allow disabling builtin functions.
     BuiltinFunctionsCannotBeDisabled,
 
-    /// Out of bounds sequence access
+    /// Out of bounds sequence access.
     OutOfBoundsAccess,
 
     /// A custom error explained by its message.