diff --git a/libafl_qemu/src/emu.rs b/libafl_qemu/src/emu.rs
index 29abc76629..26450f8225 100644
--- a/libafl_qemu/src/emu.rs
+++ b/libafl_qemu/src/emu.rs
@@ -39,7 +39,7 @@ impl IntoPy<PyObject> for MmapPerms {
 
 #[repr(C)]
 #[cfg_attr(feature = "python", pyclass)]
-#[derive(FromPyObject)]
+#[cfg_attr(feature = "python", derive(FromPyObject))]
 pub struct SyscallHookResult {
     pub retval: u64,
     pub skip_syscall: bool,