diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index ab7be608f4..358eed6c2d 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -179,4 +179,12 @@ ErrorOr<void> kill(pid_t pid, int signal)
     return {};
 }
 
+ErrorOr<int> dup2(int source_fd, int destination_fd)
+{
+    int fd = ::dup2(source_fd, destination_fd);
+    if (fd < 0)
+        return Error::from_syscall("dup2"sv, -errno);
+    return fd;
+}
+
 }
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index 70300ceffa..86cf78d60e 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -30,5 +30,6 @@ ErrorOr<struct stat> stat(StringView path);
 ErrorOr<ssize_t> read(int fd, void* buffer, size_t buffer_size);
 ErrorOr<ssize_t> write(int fd, void const* data, size_t data_size);
 ErrorOr<void> kill(pid_t, int signal);
+ErrorOr<int> dup2(int source_fd, int destination_fd);
 
 }