Index: kernel/genarch/src/multiboot/multiboot.c
===================================================================
--- kernel/genarch/src/multiboot/multiboot.c	(revision 4a816feed48c46496f885c8d7abbc9f95e2e71a4)
+++ kernel/genarch/src/multiboot/multiboot.c	(revision d1dabe1fc36c1dce16ddab03c323e1af9fd3c5ff)
@@ -55,5 +55,5 @@
 	end = strchr(cmd_line, ' ');
 	if (end == NULL)
-		end = cmd_line + strlen(cmd_line);
+		end = cmd_line + str_size(cmd_line);
 	
 	/*