diff --git a/gui/pages/VersionPage.cpp b/gui/pages/VersionPage.cpp
index cc728e75..359e71c4 100644
--- a/gui/pages/VersionPage.cpp
+++ b/gui/pages/VersionPage.cpp
@@ -368,4 +368,12 @@ void VersionPage::versionCurrent(const QModelIndex &current, const QModelIndex &
 		ui->moveLibraryDownBtn->setEnabled(enabled);
 		ui->moveLibraryUpBtn->setEnabled(enabled);
 	}
+	if(m_version->versionFileId(current.row()) == "net.minecraft")
+	{
+		ui->changeMCVersionBtn->setEnabled(true);
+	}
+	else
+	{
+		ui->changeMCVersionBtn->setEnabled(false);
+	}
 }
diff --git a/logic/minecraft/VersionBuilder.cpp b/logic/minecraft/VersionBuilder.cpp
index 29418fe3..ddcf6333 100644
--- a/logic/minecraft/VersionBuilder.cpp
+++ b/logic/minecraft/VersionBuilder.cpp
@@ -185,7 +185,8 @@ void VersionBuilder::buildFromMultilayer()
 	minecraftPatch->setOrder(-2);
 	m_version->VersionPatches.append(minecraftPatch);
 
-	QResource LWJGL(":/versions/LWJGL/2.9.0.json");
+	// TODO: this is obviously fake.
+	QResource LWJGL(":/versions/LWJGL/2.9.1.json");
 	auto lwjgl = parseJsonFile(LWJGL.absoluteFilePath(), false, false);
 	auto lwjglPatch = std::dynamic_pointer_cast<VersionPatch>(lwjgl);
 	if (!lwjglPatch)