diff --git a/OsmAnd-java/src/main/java/net/osmand/data/Building.java b/OsmAnd-java/src/main/java/net/osmand/data/Building.java
index ec96ee35d6..a1247c4b15 100644
--- a/OsmAnd-java/src/main/java/net/osmand/data/Building.java
+++ b/OsmAnd-java/src/main/java/net/osmand/data/Building.java
@@ -128,7 +128,8 @@ public class Building extends MapObject {
 				float res = ((float) hint - fch) / (((float) sch - fch));
 				if (res > 1 || res < -1) {
 					return -1;
-				}
+				} 
+				return res;
 			}
 			if (num >= numB) {
 				if (fname.contains("-") && sname == null) {