diff --git a/daedalus/Cargo.toml b/daedalus/Cargo.toml
index 336e30cbd..d7252669b 100644
--- a/daedalus/Cargo.toml
+++ b/daedalus/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "daedalus"
-version = "0.1.2"
+version = "0.1.3"
 authors = ["Jai A <jaiagr+gpg@pm.me>"]
 edition = "2018"
 license = "MIT"
diff --git a/daedalus/src/modded.rs b/daedalus/src/modded.rs
index f9d9bc843..471701c88 100644
--- a/daedalus/src/modded.rs
+++ b/daedalus/src/modded.rs
@@ -33,6 +33,8 @@ pub struct PartialVersionInfo {
     pub time: DateTime<Utc>,
     /// The classpath to the main class to launch the game
     pub main_class: Option<String>,
+    /// (Legacy) Arguments passed to the game
+    pub minecraft_arguments: Option<String>,
     /// Arguments passed to the game or JVM
     pub arguments: Option<HashMap<ArgumentType, Vec<Argument>>>,
     /// Libraries that the version depends on
@@ -72,7 +74,24 @@ pub fn merge_partial_version(partial: PartialVersionInfo, merge: VersionInfo) ->
     VersionInfo {
         arguments: if let Some(partial_args) = partial.arguments {
             if let Some(merge_args) = merge.arguments {
-                Some(partial_args.into_iter().chain(merge_args).collect())
+                let mut new_map = HashMap::new();
+
+                fn add_keys(new_map: &mut HashMap<ArgumentType, Vec<Argument>>, args: HashMap<ArgumentType, Vec<Argument>>) {
+                    for (type_, arguments) in args {
+                        for arg in arguments {
+                            if let Some(vec) = new_map.get_mut(&type_) {
+                                vec.push(arg);
+                            } else {
+                                new_map.insert(type_, vec![arg]);
+                            }
+                        }
+                    }
+                }
+
+                add_keys(&mut new_map, merge_args);
+                add_keys(&mut new_map, partial_args);
+
+                Some(new_map)
             } else {
                 Some(partial_args)
             }
@@ -93,7 +112,7 @@ pub fn merge_partial_version(partial: PartialVersionInfo, merge: VersionInfo) ->
         } else {
             merge.main_class
         },
-        minecraft_arguments: merge.minecraft_arguments,
+        minecraft_arguments: partial.minecraft_arguments,
         minimum_launcher_version: merge.minimum_launcher_version,
         release_time: partial.release_time,
         time: partial.time,
diff --git a/daedalus_client/src/fabric.rs b/daedalus_client/src/fabric.rs
index 5bf84c04c..2734bc26f 100644
--- a/daedalus_client/src/fabric.rs
+++ b/daedalus_client/src/fabric.rs
@@ -152,6 +152,7 @@ pub async fn retrieve_data(uploaded_files: &mut Vec<String>) -> Result<(), Error
                             type_: version.type_,
                             inherits_from: version.inherits_from,
                             libraries: libs,
+                            minecraft_arguments: version.minecraft_arguments,
                             processors: None,
                             data: None,
                         })?,
diff --git a/daedalus_client/src/forge.rs b/daedalus_client/src/forge.rs
index 9ba8dfc94..ff20be0cb 100644
--- a/daedalus_client/src/forge.rs
+++ b/daedalus_client/src/forge.rs
@@ -174,6 +174,7 @@ pub async fn retrieve_data(uploaded_files: &mut Vec<String>) -> Result<(), Error
                                 release_time: profile.version_info.release_time,
                                 time: profile.version_info.time,
                                 main_class: profile.version_info.main_class,
+                                minecraft_arguments: profile.version_info.minecraft_arguments.clone(),
                                 arguments: profile.version_info.minecraft_arguments.map(|x| [(ArgumentType::Game, x.split(' ').map(|x| Argument::Normal(x.to_string())).collect())].iter().cloned().collect()),
                                 libraries: libs,
                                 type_: profile.version_info.type_,
@@ -285,6 +286,7 @@ pub async fn retrieve_data(uploaded_files: &mut Vec<String>) -> Result<(), Error
                                 release_time: version_info.release_time,
                                 time: version_info.time,
                                 main_class: version_info.main_class,
+                                minecraft_arguments: version_info.minecraft_arguments,
                                 arguments: version_info.arguments,
                                 libraries: libs,
                                 type_: version_info.type_,