diff --git a/router/src/infer.rs b/router/src/infer.rs
index 51751a8a..4167c976 100644
--- a/router/src/infer.rs
+++ b/router/src/infer.rs
@@ -76,7 +76,7 @@ impl Infer {
         } else {
             false
         };
-        let block_size = if flashdecoding { 256 } else { 32 };
+        let block_size = if flashdecoding { 256 } else { 16 };
         let block_size = std::env::var("BLOCK_SIZE")
             .map(|b| b.parse().unwrap_or(block_size))
             .unwrap_or(block_size);