diff --git a/common/jpeg/simd/jfss2fst-64.asm b/common/jpeg/simd/jfss2fst-64.asm
index b6a06bc..c99acc2 100644
--- a/common/jpeg/simd/jfss2fst-64.asm
+++ b/common/jpeg/simd/jfss2fst-64.asm
@@ -386,3 +386,7 @@
 	pop	rsp		; rsp <- original rbp
 	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