diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index bc985519a8..c829b642c6 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -823,7 +823,7 @@ void tcg_target_qemu_prologue (TCGContext *s)
                        | (i * 4 + 8 + TCG_STATIC_CALL_ARGS_SIZE)
                        )
             );
-    tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size - 4));
+    tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + 4));
 
     tcg_out32 (s, MTSPR | RS (3) | CTR);
     tcg_out32 (s, BCCTR | BO_ALWAYS);
@@ -836,7 +836,7 @@ void tcg_target_qemu_prologue (TCGContext *s)
                        | (i * 4 + 8 + TCG_STATIC_CALL_ARGS_SIZE)
                        )
             );
-    tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size - 4));
+    tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + 4));
     tcg_out32 (s, MTSPR | RS (0) | LR);
     tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
     tcg_out32 (s, BCLR | BO_ALWAYS);