diff --git a/src/subcommand/checkout_subcommand.cpp b/src/subcommand/checkout_subcommand.cpp
index d0103d7..8ae8ebe 100644
--- a/src/subcommand/checkout_subcommand.cpp
+++ b/src/subcommand/checkout_subcommand.cpp
@@ -59,7 +59,7 @@ void checkout_subcommand::run()
 annotated_commit_wrapper checkout_subcommand::create_local_branch
 (
     repository_wrapper& repo,
-    const std::string& target_name,
+    const std::string_view target_name,
     bool force
 )
 {
@@ -71,7 +71,7 @@ void checkout_subcommand::checkout_tree
 (
     const repository_wrapper& repo,
     const annotated_commit_wrapper& target_annotated_commit,
-    const std::string& target_name,
+    const std::string_view target_name,
     const git_checkout_options& options
 )
 {
@@ -83,7 +83,7 @@ void checkout_subcommand::update_head
 (
     repository_wrapper& repo,
     const annotated_commit_wrapper& target_annotated_commit,
-    const std::string& target_name
+    const std::string_view target_name
 )
 {
     std::string_view annotated_ref = target_annotated_commit.reference_name();
diff --git a/src/subcommand/checkout_subcommand.hpp b/src/subcommand/checkout_subcommand.hpp
index 2aab79e..e041174 100644
--- a/src/subcommand/checkout_subcommand.hpp
+++ b/src/subcommand/checkout_subcommand.hpp
@@ -20,7 +20,7 @@ class checkout_subcommand
     annotated_commit_wrapper create_local_branch
     (
         repository_wrapper& repo,
-        const std::string& target_name,
+        const std::string_view target_name,
         bool force
     );
 
@@ -28,7 +28,7 @@ class checkout_subcommand
     (
         const repository_wrapper& repo,
         const annotated_commit_wrapper& target_annotated_commit,
-        const std::string& target_name,
+        const std::string_view target_name,
         const git_checkout_options& options
     );
 
@@ -36,7 +36,7 @@ class checkout_subcommand
     (
         repository_wrapper& repo,
         const annotated_commit_wrapper& target_annotated_commit,
-        const std::string& target_name
+        const std::string_view target_name
     );
 
     std::string m_branch_name = {};
diff --git a/src/utils/git_exception.cpp b/src/utils/git_exception.cpp
index 7be528f..18bca2c 100644
--- a/src/utils/git_exception.cpp
+++ b/src/utils/git_exception.cpp
@@ -11,7 +11,7 @@ void throw_if_error(int exit_code)
 }
 
 
-git_exception::git_exception(const std::string& message, int error_code)
+git_exception::git_exception(const std::string_view message, int error_code)
     : m_message(message), m_error_code(error_code)
 {}
 
diff --git a/src/utils/git_exception.hpp b/src/utils/git_exception.hpp
index 673949d..e9d67ec 100644
--- a/src/utils/git_exception.hpp
+++ b/src/utils/git_exception.hpp
@@ -8,13 +8,15 @@ void throw_if_error(int exit_code);
 class git_exception : public std::exception
 {
 public:
-    git_exception(const std::string& message, int error_code);
+
+    git_exception(const std::string_view message, int error_code);
 
     int error_code() const;
 
     const char* what() const noexcept override;
 
 private:
+
     std::string m_message;
     int m_error_code;
 };