diff --git a/CMakeLists.txt b/CMakeLists.txt
index 672561e..6eef485 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -178,6 +178,15 @@ int main() {
   return _bzhi_u32(0, 1);
 }" SNAPPY_HAVE_BMI2)
 
+check_cxx_source_compiles("
+#include <arm_neon.h>
+int main() {
+  uint8_t val = 3, dup[8];
+  uint8x16_t v = vld1q_dup_u8(&val);
+  vst1q_u8(dup, v);
+  return 0;
+}" SNAPPY_HAVE_NEON)
+
 include(CheckSymbolExists)
 check_symbol_exists("mmap" "sys/mman.h" HAVE_FUNC_MMAP)
 check_symbol_exists("sysconf" "unistd.h" HAVE_FUNC_SYSCONF)
diff --git a/cmake/config.h.in b/cmake/config.h.in
index 872bd3c..568f69c 100644
--- a/cmake/config.h.in
+++ b/cmake/config.h.in
@@ -49,6 +49,9 @@
 /* Define to 1 if you target processors with BMI2+ and have <bmi2intrin.h>. */
 #cmakedefine01 SNAPPY_HAVE_BMI2
 
+/* Define to 1 if you target processors with NEON and have <arm_neon.h>. */
+#cmakedefine01 SNAPPY_HAVE_NEON
+
 /* Define to 1 if your processor stores words with the most significant byte
    first (like Motorola and SPARC, unlike Intel and VAX). */
 #cmakedefine SNAPPY_IS_BIG_ENDIAN 1