diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/permalinks/PermalinkParser.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/permalinks/PermalinkParser.kt
index dc47c81a5f..347a3bb531 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/permalinks/PermalinkParser.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/permalinks/PermalinkParser.kt
@@ -44,13 +44,12 @@ object PermalinkParser {
         if (fragment.isNullOrEmpty()) {
             return PermalinkData.FallbackLink(uri)
         }
-        val indexOfQuery = fragment.indexOf("?")
-        val safeFragment = if (indexOfQuery != -1) fragment.substring(0, indexOfQuery) else fragment
+        val safeFragment = fragment.substringBefore('?')
         val viaQueryParameters = fragment.getViaParameters()
 
         // we are limiting to 2 params
         val params = safeFragment
-                .split(MatrixPatterns.SEP_REGEX.toRegex())
+                .split(MatrixPatterns.SEP_REGEX)
                 .filter { it.isNotEmpty() }
                 .take(2)