diff --git a/src/structs.rs b/src/structs.rs
index a5dbb02..68a5800 100644
--- a/src/structs.rs
+++ b/src/structs.rs
@@ -1,5 +1,8 @@
-use serde::Deserialize;
+use serde::de::{self, Visitor};
+use serde::{Deserialize, Deserializer};
+use std::fmt;
 use std::io;
+use std::marker::PhantomData;
 use std::process::ExitStatus;
 use std::string::FromUtf8Error;
 use tokio::task::JoinError;
@@ -27,6 +30,7 @@ pub struct VideoData {
     pub requested_formats: Vec<VideoURL>,
     #[serde(default)]
     pub url: Option<Url>,
+    #[serde(deserialize_with = "convert_to_u64")]
     pub duration: u64,
     pub id: String,
     pub title: String,
@@ -96,3 +100,120 @@ impl From<FromUtf8Error> for Error {
         Error::FromUtf8Error(error)
     }
 }
+
+fn convert_to_u64<'de, D>(deserializer: D) -> std::result::Result<u64, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    struct ConvertToU64<T>(PhantomData<fn() -> T>);
+
+    impl<'de> Visitor<'de> for ConvertToU64<u64> {
+        type Value = u64;
+
+        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+            formatter.write_str("an integer between 0 and 2^63")
+        }
+
+        fn visit_i8<E>(self, value: i8) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            use std::u64;
+            if value >= 0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+
+        fn visit_i16<E>(self, value: i16) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            use std::u64;
+            if value >= 0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+
+        fn visit_i32<E>(self, value: i32) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            use std::u64;
+            if value >= 0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+
+        fn visit_i64<E>(self, value: i64) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            use std::u64;
+            if value >= 0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+
+        fn visit_u8<E>(self, value: u8) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            Ok(u64::from(value))
+        }
+
+        fn visit_u16<E>(self, value: u16) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            Ok(u64::from(value))
+        }
+
+        fn visit_u32<E>(self, value: u32) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            Ok(u64::from(value))
+        }
+
+        fn visit_u64<E>(self, value: u64) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            Ok(value)
+        }
+
+        fn visit_f32<E>(self, value: f32) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            let value = value.ceil();
+            if value >= 0.0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+
+        fn visit_f64<E>(self, value: f64) -> std::result::Result<Self::Value, E>
+        where
+            E: de::Error,
+        {
+            let value = value.ceil();
+            if value >= 0.0 {
+                Ok(value as u64)
+            } else {
+                Err(E::custom(format!("u64 out of range: {}", value)))
+            }
+        }
+    }
+
+    deserializer.deserialize_any(ConvertToU64(PhantomData))
+}