diff --git a/Utilities/cmliblzma/CMakeLists.txt b/Utilities/cmliblzma/CMakeLists.txt
index e21117c38c..0e14646f2d 100644
--- a/Utilities/cmliblzma/CMakeLists.txt
+++ b/Utilities/cmliblzma/CMakeLists.txt
@@ -40,6 +40,7 @@ set(HAVE_CHECK_CRC64 1)
 set(HAVE_CHECK_SHA256 1)
 
 set(HAVE_DECODER_ARM 1)
+set(HAVE_DECODER_ARM64 1)
 set(HAVE_DECODER_ARMTHUMB 1)
 set(HAVE_DECODER_DELTA 1)
 set(HAVE_DECODER_IA64 1)
@@ -50,6 +51,7 @@ set(HAVE_DECODER_SPARC 1)
 set(HAVE_DECODER_X86 1)
 
 set(HAVE_ENCODER_ARM 1)
+set(HAVE_ENCODER_ARM64 1)
 set(HAVE_ENCODER_ARMTHUMB 1)
 set(HAVE_ENCODER_DELTA 1)
 set(HAVE_ENCODER_IA64 1)
@@ -133,6 +135,7 @@ SET(LZMA_SRCS
   liblzma/lzma/lzma_encoder_presets.c
   liblzma/rangecoder/price_table.c
   liblzma/simple/arm.c
+  liblzma/simple/arm64.c
   liblzma/simple/armthumb.c
   liblzma/simple/ia64.c
   liblzma/simple/powerpc.c
diff --git a/Utilities/cmliblzma/config.h.in b/Utilities/cmliblzma/config.h.in
index 20916cacb1..bb22e06544 100644
--- a/Utilities/cmliblzma/config.h.in
+++ b/Utilities/cmliblzma/config.h.in
@@ -46,6 +46,7 @@ typedef KWIML_INT_uintptr_t uintptr_t;
 #define HAVE_CHECK_SHA256 1
 
 #define HAVE_DECODER_ARM 1
+#define HAVE_DECODER_ARM64 1
 #define HAVE_DECODER_ARMTHUMB 1
 #define HAVE_DECODER_DELTA 1
 #define HAVE_DECODER_IA64 1
@@ -56,6 +57,7 @@ typedef KWIML_INT_uintptr_t uintptr_t;
 #define HAVE_DECODER_X86 1
 
 #define HAVE_ENCODER_ARM 1
+#define HAVE_ENCODER_ARM64 1
 #define HAVE_ENCODER_ARMTHUMB 1
 #define HAVE_ENCODER_DELTA 1
 #define HAVE_ENCODER_IA64 1