diff --git a/launcher/minecraft/mod/ModDetails.h b/launcher/minecraft/mod/ModDetails.h
index 118b156f1..dd84b0a3f 100644
--- a/launcher/minecraft/mod/ModDetails.h
+++ b/launcher/minecraft/mod/ModDetails.h
@@ -91,4 +91,32 @@ struct ModDetails
         , authors(other.authors)
         , status(other.status)
     {}
+
+    ModDetails& operator=(ModDetails& other)
+    {
+        this->mod_id = other.mod_id;
+        this->name = other.name;
+        this->version = other.version;
+        this->mcversion = other.mcversion;
+        this->homeurl = other.homeurl;
+        this->description = other.description;
+        this->authors = other.authors;
+        this->status = other.status;
+
+        return *this;
+    }
+
+    ModDetails& operator=(ModDetails&& other)
+    {
+        this->mod_id = other.mod_id;
+        this->name = other.name;
+        this->version = other.version;
+        this->mcversion = other.mcversion;
+        this->homeurl = other.homeurl;
+        this->description = other.description;
+        this->authors = other.authors;
+        this->status = other.status;
+
+        return *this;
+    }
 };
diff --git a/launcher/minecraft/mod/ResourceFolderModel.cpp b/launcher/minecraft/mod/ResourceFolderModel.cpp
index 31d88eb6f..bc18ddc23 100644
--- a/launcher/minecraft/mod/ResourceFolderModel.cpp
+++ b/launcher/minecraft/mod/ResourceFolderModel.cpp
@@ -380,8 +380,8 @@ bool ResourceFolderModel::validateIndex(const QModelIndex& index) const
     if (!index.isValid())
         return false;
 
-    size_t row = index.row();
-    if (row < 0 || row >= size())
+    int row = index.row();
+    if (row < 0 || row >= m_resources.size())
         return false;
 
     return true;