diff --git a/mp3lib/Makefile b/mp3lib/Makefile
index 09ba6a368c..f8eb6aa1be 100644
--- a/mp3lib/Makefile
+++ b/mp3lib/Makefile
@@ -5,7 +5,7 @@ LIBNAME_COMMON = mp3lib.a
 SRCS_COMMON = sr1.c
 SRCS_COMMON-$(HAVE_MMX)       += decode_mmx.c
 SRCS_COMMON-$(HAVE_SSE)       += dct64_sse.c
-SRCS_COMMON                   += decode_i586.c
+SRCS_COMMON-$(ARCH_X86_32)    += decode_i586.c
 SRCS_COMMON-$(ARCH_X86_32)-$(HAVE_MMX)       += dct64_mmx.c
 SRCS_COMMON-$(ARCH_X86_32)-$(HAVE_3DNOW)     += dct36_3dnow.c dct64_3dnow.c
 SRCS_COMMON-$(ARCH_X86_32)-$(HAVE_3DNOWEX)   += dct36_k7.c dct64_k7.c