diff --git a/dos/Makefile b/dos/Makefile
index f8ba4372..cd20c1b2 100644
--- a/dos/Makefile
+++ b/dos/Makefile
@@ -50,8 +50,8 @@ SRCS_C = \
 	../src/common/tuklib_physmem.c \
 	../src/common/tuklib_progname.c \
 	../src/liblzma/check/check.c \
-	../src/liblzma/check/crc32_table.c \
-	../src/liblzma/check/crc64_table.c \
+	../src/liblzma/check/crc32_fast.c \
+	../src/liblzma/check/crc64_fast.c \
 	../src/liblzma/check/sha256.c \
 	../src/liblzma/common/alone_decoder.c \
 	../src/liblzma/common/alone_encoder.c \
diff --git a/dos/config.h b/dos/config.h
index 415cd5a8..4bab00e1 100644
--- a/dos/config.h
+++ b/dos/config.h
@@ -12,6 +12,9 @@
 /* Define to 1 if sha256 integrity check is enabled. */
 #define HAVE_CHECK_SHA256 1
 
+/* Define to 1 if the 32-bit x86 CRC assembly files are used. */
+#define HAVE_CRC_X86_ASM 1
+
 /* Define to 1 if any of HAVE_DECODER_foo have been defined. */
 #define HAVE_DECODERS 1