diff --git a/src/scripting/codegeneration/codegen.cpp b/src/scripting/codegeneration/codegen.cpp
index db6355f84..f19e8901f 100644
--- a/src/scripting/codegeneration/codegen.cpp
+++ b/src/scripting/codegeneration/codegen.cpp
@@ -7886,7 +7886,7 @@ FxExpression *FxRuntimeStateIndex::Resolve(FCompileContext &ctx)
 		delete this;
 		return nullptr;
 	}
-	else if (Index->isConstant() && static_cast<FxConstant *>(Index)->GetValue() < 0)
+	else if (Index->isConstant() && static_cast<FxConstant *>(Index)->GetValue().GetInt() < 0)
 	{
 		ScriptPosition.Message(MSG_ERROR, "State index must be positive");
 		delete this;