diff --git a/Cargo.lock b/Cargo.lock
index 3080d69..109c592 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1028,7 +1028,7 @@ dependencies = [
 [[package]]
 name = "physis-sheets"
 version = "0.0.0"
-source = "git+https://github.com/redstrate/PhysisSheets#1b746c17e8ae8abf4ac613165e63de9f047e567e"
+source = "git+https://github.com/redstrate/PhysisSheets#ca42d72fc8a76211d67f6bd4698a45c7da0037fb"
 dependencies = [
  "physis",
 ]
diff --git a/src/common/gamedata.rs b/src/common/gamedata.rs
index 307aa0e..879c044 100644
--- a/src/common/gamedata.rs
+++ b/src/common/gamedata.rs
@@ -133,9 +133,9 @@ impl GameData {
 
     /// Returns the pop range object id that's associated with the warp id
     pub fn get_warp(&mut self, warp_id: u32) -> Option<(u32, u16)> {
-        let warp_sheet = Warp::read_from(&mut self.game_data, Language::English);
+        let warp_sheet = Warp::read_from(&mut self.game_data, Language::English)?;
 
-        let row = warp_sheet.get_row(warp_id);
+        let row = warp_sheet.get_row(warp_id)?;
 
         let pop_range_id = row.PopRange().into_u32()?;
         let zone_id = row.TerritoryType().into_u16()?;