diff --git a/src/blt/std/system.cpp b/src/blt/std/system.cpp
index 61d4321..19083e5 100755
--- a/src/blt/std/system.cpp
+++ b/src/blt/std/system.cpp
@@ -5,5 +5,4 @@
  */
 #include <blt/std/system.h>
 #include <blt/std/binary_tree.h>
-#include <blt/std/map.h>
 #include <blt/math/math.h>
\ No newline at end of file