diff --git a/libraries/libstratosphere/source/pgl/srv/pgl_srv_shell_host_utils.cpp b/libraries/libstratosphere/source/pgl/srv/pgl_srv_shell_host_utils.cpp
index f9882515b..aed264b33 100644
--- a/libraries/libstratosphere/source/pgl/srv/pgl_srv_shell_host_utils.cpp
+++ b/libraries/libstratosphere/source/pgl/srv/pgl_srv_shell_host_utils.cpp
@@ -77,7 +77,7 @@ namespace ams::pgl::srv {
             private:
                 char m_content_path[fs::EntryNameLengthMax] = {};
                 ExtensionType m_extension_type              = ExtensionType::None;
-                char m_mount_name[fs::MountNameLengthMax]   = {};
+                char m_mount_name[fs::MountNameLengthMax+1]   = {};
                 bool m_is_mounted                           = false;
                 ncm::AutoBuffer m_content_meta_buffer;
                 ncm::ProgramId m_program_id                 = ncm::InvalidProgramId;
@@ -101,7 +101,7 @@ namespace ams::pgl::srv {
                     R_TRY(this->SetExtensionType());
 
                     /* Copy in mount name. */
-                    R_UNLESS(strlen(mount) <= sizeof(m_mount_name), pgl::ResultBufferNotEnough());
+                    R_UNLESS(strlen(mount) <= sizeof(m_mount_name) - 1, pgl::ResultBufferNotEnough());
                     std::strcpy(m_mount_name, mount);
 
                     /* Mount the package. */