diff --git a/include/kami/sequential.h b/include/kami/sequential.h
index db9acbb..2466988 100644
--- a/include/kami/sequential.h
+++ b/include/kami/sequential.h
@@ -62,7 +62,7 @@ namespace kami {
          *
          * @returns returns vector of agents successfully stepped
          */
-        std::optional<std::shared_ptr<std::vector<AgentID>>>  step(std::shared_ptr<Model> model) override;
+        std::optional<std::shared_ptr<std::vector<AgentID>>> step(std::shared_ptr<Model> model) override;
 
         /**
          * @brief Execute a single time step.