diff --git a/bundles/binding/org.openhab.binding.fritzboxtr064/src/main/java/org/openhab/binding/fritzboxtr064/internal/PhonebookManager.java b/bundles/binding/org.openhab.binding.fritzboxtr064/src/main/java/org/openhab/binding/fritzboxtr064/internal/PhonebookManager.java
index 4069a357ec9..ed0ae8a0ea4 100644
--- a/bundles/binding/org.openhab.binding.fritzboxtr064/src/main/java/org/openhab/binding/fritzboxtr064/internal/PhonebookManager.java
+++ b/bundles/binding/org.openhab.binding.fritzboxtr064/src/main/java/org/openhab/binding/fritzboxtr064/internal/PhonebookManager.java
@@ -55,7 +55,7 @@ public String getNameFromNumber(final String number, final int compareCount) {
                 if (phoneBookTel == null) {
                     continue;
                 }
-                String reversedPhonebookTel = new StringBuilder(phoneBookTel.trim()).reverse().toString();
+                String reversedPhonebookTel = new StringBuilder(phoneBookTel.replaceAll("\\s+","")).reverse().toString();
                 if (reversedPhonebookTel.length() == 0) {
                     continue;
                 }