diff --git a/src/com/mirantis/mcp/MCPArtifactory.groovy b/src/com/mirantis/mcp/MCPArtifactory.groovy
index 0b06a5e..c33fa26 100644
--- a/src/com/mirantis/mcp/MCPArtifactory.groovy
+++ b/src/com/mirantis/mcp/MCPArtifactory.groovy
@@ -78,12 +78,7 @@
     } else {
         recursive = 'recursive=0'
     }
-    for (int i = 0; i < properties.size(); i++) {
-        // avoid serialization errors
-        key = properties.entrySet().toArray()[i].key
-        value = properties.entrySet().toArray()[i].value
-        properties_str += "${key}=${value}|"
-    }
+    properties_str += properties.collect({"${it.key}=${it.value}"}).join(';')
     def url = "${artifactUrl}?${properties_str}&${recursive}"
     withCredentials([
             [$class          : 'UsernamePasswordMultiBinding',