diff --git a/src/de/schildbach/pte/BahnProvider.java b/src/de/schildbach/pte/BahnProvider.java
index 9acabb94..4163f654 100644
--- a/src/de/schildbach/pte/BahnProvider.java
+++ b/src/de/schildbach/pte/BahnProvider.java
@@ -485,7 +485,7 @@ public final class BahnProvider implements NetworkProvider
 	private static final Pattern P_NORMALIZE_LINE = Pattern.compile("([A-Za-zÄÖÜäöüß]+)[\\s-]*(.*)");
 	private static final Pattern P_NORMALIZE_LINE_RUSSIA = Pattern.compile("(?:D\\s*)?(\\d{1,3}[A-Z]{2})");
 	private static final Pattern P_NORMALIZE_LINE_SBAHN = Pattern.compile("S\\w*\\d+");
-	private static final Pattern P_NORMALIZE_LINE_NUMBER = Pattern.compile("\\d{4,5}");
+	private static final Pattern P_NORMALIZE_LINE_NUMBER = Pattern.compile("\\d{3,5}");
 
 	private static String normalizeLine(final String line)
 	{