diff --git a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
index 58306c3..966736b 100644
--- a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
+++ b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
@@ -4015,9 +4015,9 @@
 // The # character is used for offset notation in Krill format
 // Both must be percent-encoded when they appear in actual annotation values
 fun String.escapeKrillValue(): String {
-    // Use URL/percent encoding like escapeKrillAttribute
-    return this.replace("#", "%23")
-        .replace("$", "%24")
+    // Match legacy korapxml2krill escaping that uses backslashes
+    return this.replace("#", "\\#")
+        .replace("$", "\\$")
 }
 
 fun jsonString(value: String): String = "\"${value.escapeJson()}\""
diff --git a/app/src/test/kotlin/de/ids_mannheim/korapxmltools/KorapXmlToolTest.kt b/app/src/test/kotlin/de/ids_mannheim/korapxmltools/KorapXmlToolTest.kt
index c4ad2c1..6eddd09 100644
--- a/app/src/test/kotlin/de/ids_mannheim/korapxmltools/KorapXmlToolTest.kt
+++ b/app/src/test/kotlin/de/ids_mannheim/korapxmltools/KorapXmlToolTest.kt
@@ -803,7 +803,15 @@
 
             assertEquals(referenceJsons.keys, kotlinJsons.keys, "Kotlin and reference JSON sets differ (nwt)")
 
-            val tokensToCheck = listOf("\"s:,\"", "\"s:.\"", "\"s:!\"")
+            val tokensToCheck = listOf(
+                "\"s:,\"",
+                "\"s:.\"",
+                "\"s:!\"",
+                "\"marmot/p:\\$,\"",
+                "\"spacy/p:\\$,\"",
+                "\"opennlp/p:\\$,\"",
+                "\"tt/p:\\$,\""
+            )
             referenceJsons.forEach { (doc, referenceJson) ->
                 val kotlinJson = kotlinJsons.getValue(doc)
                 tokensToCheck.forEach { token ->