diff --git a/pbs-api-types/src/traffic_control.rs b/pbs-api-types/src/traffic_control.rs
index 0dd7ed58..210f53ac 100644
--- a/pbs-api-types/src/traffic_control.rs
+++ b/pbs-api-types/src/traffic_control.rs
@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 use proxmox_schema::{api, Schema, IntegerSchema, StringSchema, Updater};
 
 use crate::{
-    CIDR_SCHEMA, DAILY_DURATION_FORMAT,
+    HumanByte, CIDR_SCHEMA, DAILY_DURATION_FORMAT,
     PROXMOX_SAFE_ID_FORMAT, SINGLE_LINE_COMMENT_SCHEMA,
 };
 
@@ -38,19 +38,19 @@ pub const TRAFFIC_CONTROL_BURST_SCHEMA: Schema = IntegerSchema::new(
             schema: SINGLE_LINE_COMMENT_SCHEMA,
         },
         "rate-in": {
-            schema: TRAFFIC_CONTROL_RATE_SCHEMA,
+            type: HumanByte,
             optional: true,
         },
         "burst-in": {
-            schema: TRAFFIC_CONTROL_BURST_SCHEMA,
+            type: HumanByte,
             optional: true,
         },
         "rate-out": {
-            schema: TRAFFIC_CONTROL_RATE_SCHEMA,
+            type: HumanByte,
             optional: true,
         },
         "burst-out": {
-            schema: TRAFFIC_CONTROL_BURST_SCHEMA,
+            type: HumanByte,
             optional: true,
         },
         network: {
@@ -79,13 +79,13 @@ pub struct TrafficControlRule {
     /// Rule applies to Source IPs within this networks
     pub network: Vec<String>,
     #[serde(skip_serializing_if="Option::is_none")]
-    pub rate_in: Option<u64>,
+    pub rate_in: Option<HumanByte>,
     #[serde(skip_serializing_if="Option::is_none")]
-    pub burst_in: Option<u64>,
+    pub burst_in: Option<HumanByte>,
     #[serde(skip_serializing_if="Option::is_none")]
-    pub rate_out: Option<u64>,
+    pub rate_out: Option<HumanByte>,
     #[serde(skip_serializing_if="Option::is_none")]
-    pub burst_out: Option<u64>,
+    pub burst_out: Option<HumanByte>,
     // fixme: expose this?
     //    /// Bandwidth is shared accross all connections
     //    #[serde(skip_serializing_if="Option::is_none")]
diff --git a/src/cached_traffic_control.rs b/src/cached_traffic_control.rs
index be554f6c..b45e564c 100644
--- a/src/cached_traffic_control.rs
+++ b/src/cached_traffic_control.rs
@@ -224,7 +224,10 @@ impl TrafficControlCache {
                 Some(ref read_limiter) => {
                     match rule.rate_in {
                         Some(rate_in) => {
-                            read_limiter.update_rate(rate_in, rule.burst_in.unwrap_or(rate_in));
+                            read_limiter.update_rate(
+                                rate_in.as_u64(),
+                                rule.burst_in.unwrap_or(rate_in).as_u64(),
+                            );
                         }
                         None => entry.0 = None,
                     }
@@ -235,8 +238,8 @@ impl TrafficControlCache {
                         let limiter = create_limiter(
                             self.use_shared_memory,
                             &name,
-                            rate_in,
-                            rule.burst_in.unwrap_or(rate_in),
+                            rate_in.as_u64(),
+                            rule.burst_in.unwrap_or(rate_in).as_u64(),
                         )?;
                         entry.0 = Some(limiter);
                     }
@@ -247,7 +250,10 @@ impl TrafficControlCache {
                 Some(ref write_limiter) => {
                     match rule.rate_out {
                         Some(rate_out) => {
-                            write_limiter.update_rate(rate_out, rule.burst_out.unwrap_or(rate_out));
+                            write_limiter.update_rate(
+                                rate_out.as_u64(),
+                                rule.burst_out.unwrap_or(rate_out).as_u64(),
+                            );
                         }
                         None => entry.1 = None,
                     }
@@ -258,8 +264,8 @@ impl TrafficControlCache {
                         let limiter = create_limiter(
                             self.use_shared_memory,
                             &name,
-                            rate_out,
-                            rule.burst_out.unwrap_or(rate_out),
+                            rate_out.as_u64(),
+                            rule.burst_out.unwrap_or(rate_out).as_u64(),
                         )?;
                         entry.1 = Some(limiter);
                     }