diff --git a/src/common/textures/textureid.h b/src/common/textures/textureid.h
index ae025c76c..5237acdae 100644
--- a/src/common/textures/textureid.h
+++ b/src/common/textures/textureid.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cstddef>
+
 enum class ETextureType : uint8_t
 {
 	Any,
@@ -28,7 +30,7 @@ class FTextureID
 
 public:
 	FTextureID() = default;
-	FTextureID(nullptr_t) : texnum(0) {}
+	FTextureID(std::nullptr_t) : texnum(0) {}
 	bool isNull() const { return texnum == 0; }
 	bool isValid() const { return texnum > 0; }
 	bool Exists() const { return texnum >= 0; }