diff --git a/src/main/java/org/mtransit/commons/provider/OttawaOCTranspoProviderCommons.kt b/src/main/java/org/mtransit/commons/provider/OttawaOCTranspoProviderCommons.kt
index 5df23c3..38e04be 100644
--- a/src/main/java/org/mtransit/commons/provider/OttawaOCTranspoProviderCommons.kt
+++ b/src/main/java/org/mtransit/commons/provider/OttawaOCTranspoProviderCommons.kt
@@ -1,21 +1,20 @@
 package org.mtransit.commons.provider
 
 import org.mtransit.commons.CleanUtils
-import org.mtransit.commons.StringUtils.EMPTY
 import java.util.Locale
-import java.util.regex.Pattern
 
 object OttawaOCTranspoProviderCommons {
 
     private val FIX_CAIRINE_WILSON_ = CleanUtils.cleanWords("carine wilson")
     private val FIX_CAIRINE_WILSON_REPLACEMENT = CleanUtils.cleanWordsReplacement("Cairine Wilson")
 
-    private val REMOVE_SECOND_LANGUAGE = Pattern.compile("(\\s+~\\s+[^<>]+?)(?=\\s*<>|$)") // FIXME i18n head-signs
+    private val REMOVE_SECOND_LANGUAGE = """((^|(?<=<>)\s+)([^~]+)\s+~\s+([^~<]+)(\s+(?=<>)|$))""".toRegex(RegexOption.IGNORE_CASE) // FIXME i18n head-signs
+    private const val REMOVE_SECOND_LANGUAGE_REPLACEMENT = "$2$3$5"
 
     @JvmStatic
     fun cleanTripHeadsign(tripHeadSign: String, @Suppress("unused") vararg ignoreWords: String): String {
         var newTripHeadSign = tripHeadSign
-        newTripHeadSign = REMOVE_SECOND_LANGUAGE.matcher(newTripHeadSign).replaceAll(EMPTY)
+        newTripHeadSign = REMOVE_SECOND_LANGUAGE.replace(newTripHeadSign, REMOVE_SECOND_LANGUAGE_REPLACEMENT)
         newTripHeadSign = FIX_CAIRINE_WILSON_.matcher(newTripHeadSign).replaceAll(FIX_CAIRINE_WILSON_REPLACEMENT)
         newTripHeadSign = CleanUtils.fixMcXCase(newTripHeadSign)
         newTripHeadSign = CleanUtils.cleanBounds(newTripHeadSign)
@@ -23,4 +22,4 @@ object OttawaOCTranspoProviderCommons {
         newTripHeadSign = CleanUtils.cleanLabel(Locale.ENGLISH, newTripHeadSign)
         return newTripHeadSign
     }
-}
\ No newline at end of file
+}