diff --git a/Common/Arm64Emitter.cpp b/Common/Arm64Emitter.cpp
index 84ebf4658a..4b4dbaefda 100644
--- a/Common/Arm64Emitter.cpp
+++ b/Common/Arm64Emitter.cpp
@@ -304,9 +304,10 @@ const u8* ARM64XEmitter::AlignCode16()
 
 const u8* ARM64XEmitter::AlignCodePage()
 {
-	int c = int((u64)m_code & 4095);
+	int page_size = GetMemoryProtectPageSize();
+	int c = int((u64)m_code & (page_size - 1));
 	if (c)
-		ReserveCodeSpace(4096-c);
+		ReserveCodeSpace(page_size - c);
 	return m_code;
 }