diff --git a/syscall/jasmin_syscall.c b/syscall/jasmin_syscall.c
index ea7d42c..d85634e 100644
--- a/syscall/jasmin_syscall.c
+++ b/syscall/jasmin_syscall.c
@@ -93,7 +93,7 @@ uint8_t* __jasmin_syscall_read__(uint8_t* _x, uint64_t xlen, uint64_t fd)
   uint32_t* addr = (uint32_t*)(uintptr_t)fd;
   long ret = syscall(SYS_futex, addr, FUTEX_WAIT, 0x1, NULL, NULL, 0);
   if (ret == -1) {
-    printf("%d\n", errno);
+    printf("Agent futex error: %d\n", errno);
     perror("futex");
   }