diff --git a/common/jpeg/simd/jcclrss2-64.asm b/common/jpeg/simd/jcclrss2-64.asm
index f2cd8f4..31c5be6 100644
--- a/common/jpeg/simd/jcclrss2-64.asm
+++ b/common/jpeg/simd/jcclrss2-64.asm
@@ -482,3 +482,6 @@
 	pop	rbp
 	ret
 
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+	align	16