diff --git a/Cargo.lock b/Cargo.lock
index 9b5ec98..164fccd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2780,7 +2780,7 @@ checksum = "7b2093cf4c8eb1e67749a6762251bc9cd836b6fc171623bd0a9d324d37af2417"
 
 [[package]]
 name = "telemt"
-version = "3.4.1"
+version = "3.4.2"
 dependencies = [
  "aes",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 009f679..beac5d5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "telemt"
-version = "3.4.1"
+version = "3.4.2"
 edition = "2024"
 
 [features]
diff --git a/src/tls_front/emulator.rs b/src/tls_front/emulator.rs
index a23373d..ba8453a 100644
--- a/src/tls_front/emulator.rs
+++ b/src/tls_front/emulator.rs
@@ -18,6 +18,9 @@ fn jitter_and_clamp_sizes(sizes: &[usize], rng: &SecureRandom) -> Vec<usize> {
         .iter()
         .map(|&size| {
             let base = size.clamp(MIN_APP_DATA, MAX_APP_DATA);
+            if base == MIN_APP_DATA || base == MAX_APP_DATA {
+                return base;
+            }
             let jitter_range = ((base as f64) * 0.03).round() as i64;
             if jitter_range == 0 {
                 return base;