diff --git a/games-strategy/0ad/patches/0ad-0.0.23b~alpha.patchset b/games-strategy/0ad/patches/0ad-0.0.23b~alpha.patchset
index c0b774a17..93833860f 100644
--- a/games-strategy/0ad/patches/0ad-0.0.23b~alpha.patchset
+++ b/games-strategy/0ad/patches/0ad-0.0.23b~alpha.patchset
@@ -1021,7 +1021,7 @@ index 0000000..74d6f47
 ++#  define R13_sig(p) ((p)->uc_mcontext.r13)
 ++#  define R14_sig(p) ((p)->uc_mcontext.r14)
 ++#  define R15_sig(p) ((p)->uc_mcontext.r15)
-++#  define XMM_sig(p,i) ((p)->uc_mcontext.fpu.xmm.xmm ## i)
+++#  define XMM_sig(p,i) ((p)->uc_mcontext.fpu.fp_fxsave.xmm[i])
 ++# endif
 + #else
 + # error "Don't know how to read/write to the thread state via the mcontext_t."