diff --git a/src/DotNetLightning.Core/Serialize/Msgs/Msgs.fs b/src/DotNetLightning.Core/Serialize/Msgs/Msgs.fs
index 542b4d9c6..020f13ebe 100644
--- a/src/DotNetLightning.Core/Serialize/Msgs/Msgs.fs
+++ b/src/DotNetLightning.Core/Serialize/Msgs/Msgs.fs
@@ -1288,7 +1288,15 @@ type ErrorMessage =
                 ls.WriteWithLen(this.Data)
 
         member this.GetFailureMsgData() =
-            System.Text.ASCIIEncoding.ASCII.GetString(this.Data)
+            let isPrintableAscii =
+                not <| Array.exists (fun asciiByte -> asciiByte < 32uy) this.Data
+            if isPrintableAscii then
+                System.Text.ASCIIEncoding.ASCII.GetString(this.Data)
+            else
+                Array.fold
+                    (fun msg (asciiByte: byte) -> sprintf "%s %02x" msg asciiByte)
+                    "<error contains non-printable binary data>:"
+                    this.Data
 
 and WhichChannel =
     | SpecificChannel of ChannelId