diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c
index e3c63adc3e..3d24cd4da4 100644
--- a/tcg/ppc64/tcg-target.c
+++ b/tcg/ppc64/tcg-target.c
@@ -130,7 +130,7 @@ static const int tcg_target_call_iarg_regs[] = {
     TCG_REG_R10
 };
 
-static const int tcg_target_call_oarg_regs[2] = {
+static const int tcg_target_call_oarg_regs[] = {
     TCG_REG_R3
 };