diff --git a/pom.xml b/pom.xml
index f532af7..86c7dc8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 	</parent>
 	<groupId>org.gcube.data.transfer</groupId>
 	<artifactId>uri-resolver</artifactId>
-	<version>1.2.0-SNAPSHOT</version>
+	<version>1.3.0-SNAPSHOT</version>
 	<packaging>war</packaging>
 
 	<properties>
diff --git a/src/main/java/org/gcube/datatransfer/resolver/http/HttpResolver.java b/src/main/java/org/gcube/datatransfer/resolver/http/HttpResolver.java
index bead527..440ed3a 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/http/HttpResolver.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/http/HttpResolver.java
@@ -84,16 +84,24 @@ public class HttpResolver extends HttpServlet {
 		
 		//we should not unescape the filename with spaces
 		
+		logger.debug("uri = "+uri);
+		
 		int index= uri.indexOf("?");
 		if ( index!= -1)
 		{
+			logger.debug("Found char ?");
 			String firsPart = uri.substring(0, index);
 			String secondPart=  uri.substring( index+1);
-			secondPart.replace(" ","+");//the char + is removed when the servlet is doing unescaping of the query paramenters, we just put it back
+			logger.debug("firsPart not chagend: "+firsPart);
+			logger.debug("replacing in smp-uri char space with char + ...");
+			secondPart = secondPart.replace(" ","+");//the char + is removed when the servlet is doing unescaping of the query paramenters, we just put it back
+			logger.debug("new secondPart: "+secondPart);
 			uri= firsPart+"?"+secondPart;
 		}
-		else uri = uri.replace(" ","+");//the char + is removed when the servlet is doing unescaping of the query paramenters, we just put it back
-
+		else {
+			logger.debug("Not found char ?");
+			uri = uri.replace(" ","+");//the char + is removed when the servlet is doing unescaping of the query paramenters, we just put it back
+		}
 		
 		logger.debug("URI = "+ uri);
 		InputStream in = null;