diff --git a/src/system/boot/loader/load_driver_settings.cpp b/src/system/boot/loader/load_driver_settings.cpp
index cec73ca953..65aca1dce0 100644
--- a/src/system/boot/loader/load_driver_settings.cpp
+++ b/src/system/boot/loader/load_driver_settings.cpp
@@ -125,7 +125,7 @@ add_stage2_driver_settings(stage2_args* args)
 
 
 status_t
-add_safe_mode_settings(char* settings)
+add_safe_mode_settings(const char* settings)
 {
 	if (settings == NULL || settings[0] == '\0')
 		return B_OK;
diff --git a/src/system/boot/loader/load_driver_settings.h b/src/system/boot/loader/load_driver_settings.h
index a5ad2f86a6..02ae17c44c 100644
--- a/src/system/boot/loader/load_driver_settings.h
+++ b/src/system/boot/loader/load_driver_settings.h
@@ -9,7 +9,7 @@
 #include <boot/vfs.h>
 
 
-extern status_t add_safe_mode_settings(char *buffer);
+extern status_t add_safe_mode_settings(const char *buffer);
 extern status_t add_stage2_driver_settings(stage2_args *args);
 extern status_t load_driver_settings(stage2_args *args, Directory *volume);