diff --git a/swift/Sources/FlatBuffers/ByteBuffer.swift b/swift/Sources/FlatBuffers/ByteBuffer.swift
index fead65efdf8..6372ba04753 100644
--- a/swift/Sources/FlatBuffers/ByteBuffer.swift
+++ b/swift/Sources/FlatBuffers/ByteBuffer.swift
@@ -234,7 +234,9 @@ public struct ByteBuffer {
   mutating func push<T: NativeStruct>(struct value: T, size: Int) {
     ensureSpace(size: size)
     var v = value
-    memcpy(_storage.memory.advanced(by: writerIndex &- size), &v, size)
+    _ = withUnsafeMutablePointer(to: &v) { pointer in
+      memcpy(_storage.memory.advanced(by: writerIndex &- size), pointer, size)
+    }
     _writerSize = _writerSize &+ size
   }
 
@@ -247,7 +249,9 @@ public struct ByteBuffer {
   mutating func push<T: Scalar>(value: T, len: Int) {
     ensureSpace(size: len)
     var v = value
-    memcpy(_storage.memory.advanced(by: writerIndex &- len), &v, len)
+    _ = withUnsafeMutablePointer(to: &v) { pointer in
+      memcpy(_storage.memory.advanced(by: writerIndex &- len), pointer, len)
+    }
     _writerSize = _writerSize &+ len
   }