diff --git a/lzma/C/Makefile.am b/lzma/C/Makefile.am
index 80e513d..74beb93 100644
--- a/lzma/C/Makefile.am
+++ b/lzma/C/Makefile.am
@@ -60,7 +60,7 @@ liblzma_la_LIBADD = $(ASM_7z).lo
 
 $(ASM_7z).lo: $(ASM_S)
 	$(ASM_PROG) $(ASM_OPT) -o $(ASM_7z).o $(ASM_S)
-	mkdir .libs
+	mkdir -p .libs
 	cp $(ASM_7z).o .libs/
 	@echo -e "$(7ZIPASMLOFILE)" > $(ASM_7z).lo 
 endif