diff --git a/crates/rattler_conda_types/src/conda_lock/builder.rs b/crates/rattler_conda_types/src/conda_lock/builder.rs
index b082c24eb..c61e30781 100644
--- a/crates/rattler_conda_types/src/conda_lock/builder.rs
+++ b/crates/rattler_conda_types/src/conda_lock/builder.rs
@@ -141,8 +141,8 @@ impl LockedPackages {
                     category: super::default_category(),
                     source: None,
                     build: Some(locked_package.build_string),
-                    arch: locked_package.arch,
-                    subdir: locked_package.subdir,
+                    arch: self.platform.arch().map(|arch| arch.to_string()),
+                    subdir: Some(self.platform.to_string()),
                     build_number: locked_package.build_number,
                     constrains: if locked_package.constrains.is_empty() {
                         None
@@ -450,7 +450,7 @@ mod tests {
         );
         assert_eq!(
             record.package_record.platform.clone().unwrap(),
-            locked_dep.platform.to_string()
+            locked_dep.platform.only_platform().unwrap()
         );
         assert_eq!(record.package_record.arch, locked_dep.arch);
         assert_eq!(
diff --git a/crates/rattler_conda_types/src/conda_lock/mod.rs b/crates/rattler_conda_types/src/conda_lock/mod.rs
index 8fe8b9772..84fd67036 100644
--- a/crates/rattler_conda_types/src/conda_lock/mod.rs
+++ b/crates/rattler_conda_types/src/conda_lock/mod.rs
@@ -242,7 +242,8 @@ pub struct LockedDependency {
     pub version: String,
     /// Pip or Conda managed
     pub manager: Manager,
-    /// What platform is this package for
+    /// What platform is this package for (different to other places in the conda ecosystem,
+    /// this actually represents the _full_ subdir (incl. arch))
     pub platform: Platform,
     /// What are its own dependencies mapping name to version constraint
 
@@ -370,6 +371,9 @@ impl TryFrom<LockedDependency> for RepoDataRecord {
         let build = value
             .build
             .ok_or_else(|| ConversionError::Missing("build".to_string()))?;
+
+        let platform = value.platform.only_platform();
+
         Ok(Self {
             package_record: PackageRecord {
                 arch: value.arch,
@@ -385,10 +389,10 @@ impl TryFrom<LockedDependency> for RepoDataRecord {
                 md5,
                 name: value.name,
                 noarch: value.noarch,
-                platform: Some(value.platform.to_string()),
+                platform: platform.map(|p| p.to_string()),
                 sha256,
                 size: value.size,
-                subdir: value.subdir.unwrap_or("noarch".to_string()),
+                subdir: value.subdir.unwrap_or(value.platform.to_string()),
                 timestamp: value.timestamp,
                 track_features: value.track_features.unwrap_or_default(),
                 version,
@@ -443,10 +447,10 @@ impl From<&str> for Channel {
 #[cfg(test)]
 mod test {
     use super::{channel_from_url, file_name_from_url, CondaLock, PackageHashes};
-    use crate::Platform;
+    use crate::{Platform, RepoDataRecord, VersionWithSource};
     use insta::assert_yaml_snapshot;
     use serde_yaml::from_str;
-    use std::path::Path;
+    use std::{path::Path, str::FromStr};
     use url::Url;
 
     #[test]
@@ -562,4 +566,44 @@ mod test {
             Some("foo-1-0.conda")
         );
     }
+
+    #[test]
+    fn test_locked_dependency() {
+        let yaml = r#"
+        name: ncurses
+        version: '6.4'
+        manager: conda
+        platform: linux-64
+        arch: x86_64
+        dependencies:
+            libgcc-ng: '>=12'
+        url: https://conda.anaconda.org/conda-forge/linux-64/ncurses-6.4-hcb278e6_0.conda
+        hash:
+            md5: 681105bccc2a3f7f1a837d47d39c9179
+            sha256: ccf61e61d58a8a7b2d66822d5568e2dc9387883dd9b2da61e1d787ece4c4979a
+        optional: false
+        category: main
+        build: hcb278e6_0
+        subdir: linux-64
+        build_number: 0
+        license: X11 AND BSD-3-Clause
+        size: 880967
+        timestamp: 1686076725450"#;
+
+        let result: crate::conda_lock::LockedDependency = from_str(yaml).unwrap();
+
+        assert_eq!(result.name, "ncurses");
+        assert_eq!(result.version, "6.4");
+
+        let repodata_record = RepoDataRecord::try_from(result.clone()).unwrap();
+
+        assert_eq!(repodata_record.package_record.name, "ncurses");
+        assert_eq!(
+            repodata_record.package_record.version,
+            VersionWithSource::from_str("6.4").unwrap()
+        );
+        assert!(repodata_record.package_record.noarch.is_none());
+
+        insta::assert_yaml_snapshot!(repodata_record);
+    }
 }
diff --git a/crates/rattler_conda_types/src/conda_lock/snapshots/rattler_conda_types__conda_lock__test__locked_dependency.snap b/crates/rattler_conda_types/src/conda_lock/snapshots/rattler_conda_types__conda_lock__test__locked_dependency.snap
new file mode 100644
index 000000000..a691dc007
--- /dev/null
+++ b/crates/rattler_conda_types/src/conda_lock/snapshots/rattler_conda_types__conda_lock__test__locked_dependency.snap
@@ -0,0 +1,22 @@
+---
+source: crates/rattler_conda_types/src/conda_lock/mod.rs
+expression: repodata_record
+---
+arch: x86_64
+build: hcb278e6_0
+build_number: 0
+depends:
+  - libgcc-ng >=12
+license: X11 AND BSD-3-Clause
+md5: 681105bccc2a3f7f1a837d47d39c9179
+name: ncurses
+platform: linux
+sha256: ccf61e61d58a8a7b2d66822d5568e2dc9387883dd9b2da61e1d787ece4c4979a
+size: 880967
+subdir: linux-64
+timestamp: 1686076725450
+version: "6.4"
+fn: ncurses-6.4-hcb278e6_0.conda
+url: "https://conda.anaconda.org/conda-forge/linux-64/ncurses-6.4-hcb278e6_0.conda"
+channel: "https://conda.anaconda.org/conda-forge"
+
diff --git a/crates/rattler_conda_types/src/platform.rs b/crates/rattler_conda_types/src/platform.rs
index dadfbb2ce..0939809a3 100644
--- a/crates/rattler_conda_types/src/platform.rs
+++ b/crates/rattler_conda_types/src/platform.rs
@@ -190,6 +190,26 @@ impl Platform {
     pub const fn is_osx(self) -> bool {
         matches!(self, Platform::Osx64 | Platform::OsxArm64)
     }
+
+    /// Return only the platform (linux, win, or osx from the platform enum)
+    pub fn only_platform(&self) -> Option<&str> {
+        match self {
+            Platform::NoArch => None,
+            Platform::Linux32
+            | Platform::Linux64
+            | Platform::LinuxAarch64
+            | Platform::LinuxArmV6l
+            | Platform::LinuxArmV7l
+            | Platform::LinuxPpc64le
+            | Platform::LinuxPpc64
+            | Platform::LinuxS390X
+            | Platform::LinuxRiscv32
+            | Platform::LinuxRiscv64 => Some("linux"),
+            Platform::Osx64 | Platform::OsxArm64 => Some("osx"),
+            Platform::Win32 | Platform::Win64 | Platform::WinArm64 => Some("win"),
+            Platform::Emscripten32 => Some("emscripten"),
+        }
+    }
 }
 
 /// An error that can occur when parsing a platform from a string.