diff --git a/Sources/NIOCore/ByteBuffer-hexdump.swift b/Sources/NIOCore/ByteBuffer-hexdump.swift
index a52ad3ead4..de5ed26bf0 100644
--- a/Sources/NIOCore/ByteBuffer-hexdump.swift
+++ b/Sources/NIOCore/ByteBuffer-hexdump.swift
@@ -131,9 +131,9 @@ extension ByteBuffer {
         result += String(repeating: " ", count: 60 - result.count)
 
         // Right column renders the 16 bytes line as ASCII characters, or "." if the character is not printable.
+        let printableRange = UInt8(ascii: " ") ..< UInt8(ascii: "~")
         let printableBytes = self.readableBytesView.map {
-            let printableRange = UInt8(ascii: " ") ..< UInt8(ascii: "~")
-            return printableRange.contains($0) ? $0 : UInt8(ascii: ".")
+            printableRange.contains($0) ? $0 : UInt8(ascii: ".")
         }
 
         result += "|"