diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f86975f..a319e061 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,7 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 * JPEG thumbnails will now use sensible extensions.
 * Fixed directory permissions when exporting MMR to Synapse.
 * In some rare cases, memory usage may have leaked due to thumbnail error handling. This has been fixed.
-
+* Synapse signing keys with blank lines can now be decoded/combined with other keys.
 
 ## [1.3.4] - February 9, 2024
 
diff --git a/homeserver_interop/synapse/signing_key.go b/homeserver_interop/synapse/signing_key.go
index b237f438..23c56f58 100644
--- a/homeserver_interop/synapse/signing_key.go
+++ b/homeserver_interop/synapse/signing_key.go
@@ -45,6 +45,9 @@ func DecodeAllSigningKeys(key io.Reader) ([]*homeserver_interop.SigningKey, erro
 	}
 	keys := make([]*homeserver_interop.SigningKey, 0)
 	for i, line := range lines {
+		if line == "" {
+			continue
+		}
 		parts := strings.Split(line, " ")
 		if len(parts) != 3 {
 			return nil, fmt.Errorf("i:%d - expected 3 parts to signing key, got %d", i, len(parts))