--- a/netwerk/srtp/src/crypto/cipher/aes_icm.c
+++ b/netwerk/srtp/src/crypto/cipher/aes_icm.c
@@ -394,17 +394,17 @@ aes_icm_encrypt_ismacryp(aes_icm_ctx_t *
 #if ALIGN_32
     b = (uint32_t *)buf;
     *b++ ^= c->keystream_buffer.v32[0];
     *b++ ^= c->keystream_buffer.v32[1];
     *b++ ^= c->keystream_buffer.v32[2];
     *b++ ^= c->keystream_buffer.v32[3];
     buf = (uint8_t *)b;
 #else    
-    if ((((unsigned long) buf) & 0x03) != 0) {
+    if ((((uintptr_t) buf) & 0x03) != 0) {
       *buf++ ^= c->keystream_buffer.v8[0];
       *buf++ ^= c->keystream_buffer.v8[1];
       *buf++ ^= c->keystream_buffer.v8[2];
       *buf++ ^= c->keystream_buffer.v8[3];
       *buf++ ^= c->keystream_buffer.v8[4];
       *buf++ ^= c->keystream_buffer.v8[5];
       *buf++ ^= c->keystream_buffer.v8[6];
       *buf++ ^= c->keystream_buffer.v8[7];