diff --git a/Utilities/XrdAdaptor/src/XrdSource.cc b/Utilities/XrdAdaptor/src/XrdSource.cc
index b0264c1d4b324..31297459dad6a 100644
--- a/Utilities/XrdAdaptor/src/XrdSource.cc
+++ b/Utilities/XrdAdaptor/src/XrdSource.cc
@@ -219,7 +219,7 @@ Source::Source(timespec now, std::unique_ptr<XrdCl::File> fh, const std::string
 }
 
 bool Source::getHostname(const std::string &id, std::string &hostname) {
-  size_t pos = id.find(':');
+  size_t pos = id.find_last_of(':');
   hostname = id;
   if ((pos != std::string::npos) && (pos > 0)) {
     hostname = id.substr(0, pos);