diff --git a/tools/shell_tool.cpp b/tools/shell_tool.cpp
index 54ec14f..85087dc 100644
--- a/tools/shell_tool.cpp
+++ b/tools/shell_tool.cpp
@@ -10,7 +10,6 @@
 #include <unistd.h>
 #include <signal.h>
 #include <cstring>
-#include <fcntl.h>
 #include "utility.hpp"
 
 Tool make_shell_tool(bool safe) {