diff --git a/tonic/src/codec/compression.rs b/tonic/src/codec/compression.rs
index c74e3c673..8be2c0ccb 100644
--- a/tonic/src/codec/compression.rs
+++ b/tonic/src/codec/compression.rs
@@ -188,7 +188,7 @@ impl fmt::Display for CompressionEncoding {
 }
 
 fn split_by_comma(s: &str) -> impl Iterator<Item = &str> {
-    s.trim().split(',').map(|s| s.trim())
+    s.split(',').map(|s| s.trim())
 }
 
 /// Compress `len` bytes from `decompressed_buf` into `out_buf`.