diff --git a/common/jpeg/simd/jcsamss2-64.asm b/common/jpeg/simd/jcsamss2-64.asm
index 29c3f4f..502d225 100644
--- a/common/jpeg/simd/jcsamss2-64.asm
+++ b/common/jpeg/simd/jcsamss2-64.asm
@@ -45,6 +45,7 @@
 
 EXTN(jsimd_h2v1_downsample_sse2):
 	push	rbp
+	mov	rax,rsp
 	mov	rbp,rsp
 	collect_args
 
@@ -188,6 +189,7 @@
 
 EXTN(jsimd_h2v2_downsample_sse2):
 	push	rbp
+	mov	rax,rsp
 	mov	rbp,rsp
 	collect_args