diff --git a/lzma/ASM/x86/Makefile.am b/lzma/ASM/x86/Makefile.am
index 0b17c6e..fc745f4 100644
--- a/lzma/ASM/x86/Makefile.am
+++ b/lzma/ASM/x86/Makefile.am
@@ -1,8 +1,8 @@
 MAINTAINERCLEANFILES = Makefile.in
 
-lzmaasm_DATA = \
+lzmaasm_SOURCES = \
 	7zAsm.asm \
 	7zCrcOpt_asm.asm
 
-EXTRA_DIST = $(lzmaasm_DATA)
+EXTRA_DIST = $(lzmaasm_SOURCES)
 lzmaasmdir = @abs_top_srcdir@/lzma/ASM/x86/