diff --git a/SystemCalls/Syscalls.cpp b/SystemCalls/Syscalls.cpp
index 9e5ba2bf..8e9686a7 100644
--- a/SystemCalls/Syscalls.cpp
+++ b/SystemCalls/Syscalls.cpp
@@ -5,7 +5,7 @@
 extern "C" uint64_t SystemCallsHandler(SyscallsRegs *regs)
 {
 #if defined(__amd64__)
-    fixme("System call %lld", regs->rax);
+    fixme("System call %ld", regs->rax);
 #elif defined(__i386__)
     fixme("System call %lld", regs->eax);
 #elif defined(__aarch64__)