diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 32995179b5..f07330ffc1 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -2167,7 +2167,7 @@ VSX_TSQRT(xvtsqrtsp, 4, float32, VsrW(i), -126, 23)
 void helper_##op(CPUPPCState *env, ppc_vsr_t *xt,                             \
                  ppc_vsr_t *s1, ppc_vsr_t *s2, ppc_vsr_t *s3)                 \
 {                                                                             \
-    ppc_vsr_t t = *xt;                                                        \
+    ppc_vsr_t t = { };                                                        \
     int i;                                                                    \
                                                                               \
     helper_reset_fpstatus(env);                                               \