diff --git a/src/structs.rs b/src/structs.rs
index 3ef2304..51e647d 100644
--- a/src/structs.rs
+++ b/src/structs.rs
@@ -99,14 +99,13 @@ mod helpers {
   /// The input string here is either a number or two numbers separated by `SEPARATOR`.
   pub fn de_position<'de, D>(deserializer: D) -> Result<Option<Position>, D::Error>
   where D: de::Deserializer<'de> {
-    if let Ok(s) = String::deserialize(deserializer) {
-      let mut ints = s.split(SEPARATOR).map(u16::from_str);
-      if let Some(Ok(n)) = ints.next() {
-        return Ok(Some(Position {
-          item_position: n,
-          total_items:   ints.next().and_then(Result::ok),
-        }));
-      }
+    let s = String::deserialize(deserializer)?;
+    let mut ints = s.split(SEPARATOR).map(u16::from_str);
+    if let Some(Ok(n)) = ints.next() {
+      return Ok(Some(Position {
+        item_position: n,
+        total_items:   ints.next().and_then(Result::ok),
+      }));
     }
     Ok(None)
   }