diff --git a/sse2neon.h b/sse2neon.h
index 8a20f088..8fe83170 100644
--- a/sse2neon.h
+++ b/sse2neon.h
@@ -134,7 +134,7 @@
 
 FORCE_INLINE double recast_f64(uint64_t u64) {
     double f64;
-    memcpy(&f64, u64, sizeof(uint64_t));
+    memcpy(&f64, &u64, sizeof(uint64_t));
     return f64;
 }