diff --git a/libs/libc/src/fcntl.cpp b/libs/libc/src/fcntl.cpp
index 69ae13c1..1c5bb063 100644
--- a/libs/libc/src/fcntl.cpp
+++ b/libs/libc/src/fcntl.cpp
@@ -1,5 +1,6 @@
 #include <fcntl.h>
 #include <stdarg.h>
+#include <stdint.h>
 #include <sys/syscall.h>
 #include <unistd.h>
 
@@ -14,12 +15,7 @@ extern "C"
     {
         va_list ap;
         va_start(ap, cmd);
-        long result;
-        switch (cmd)
-        {
-        case F_DUPFD: result = syscall(SYS_fcntl, fd, cmd, va_arg(ap, int)); break;
-        default: result = syscall(SYS_fcntl, fd, cmd, 0); break;
-        }
+        long result = syscall(SYS_fcntl, fd, cmd, va_arg(ap, uintptr_t));
         va_end(ap);
         return (int)result;
     }