diff --git a/stepmania/src/crypto51/misc.cpp b/stepmania/src/crypto51/misc.cpp
index c193b3f3ed..b5dfb15714 100644
--- a/stepmania/src/crypto51/misc.cpp
+++ b/stepmania/src/crypto51/misc.cpp
@@ -16,7 +16,7 @@ template<> void ByteReverse(word64 *, const word64 *, unsigned int);
 
 void xorbuf(byte *buf, const byte *mask, unsigned int count)
 {
-	if (((unsigned int)buf | (unsigned int)mask | count) % WORD_SIZE == 0)
+	if (((uintptr_t)buf | (uintptr_t)mask | count) % WORD_SIZE == 0)
 		XorWords((word *)buf, (const word *)mask, count/WORD_SIZE);
 	else
 	{
@@ -27,7 +27,7 @@ void xorbuf(byte *buf, const byte *mask, unsigned int count)
 
 void xorbuf(byte *output, const byte *input, const byte *mask, unsigned int count)
 {
-	if (((unsigned int)output | (unsigned int)input | (unsigned int)mask | count) % WORD_SIZE == 0)
+	if (((uintptr_t)output | (uintptr_t)input | (uintptr_t)mask | count) % WORD_SIZE == 0)
 		XorWords((word *)output, (const word *)input, (const word *)mask, count/WORD_SIZE);
 	else
 	{