diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
index e003b1866..e054180ae 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
@@ -118,8 +118,7 @@ public class GCatAPIClient {
 		}
 	}
 
-	public boolean purge(final String objidentifier) throws IOException, URISyntaxException {
-		String resCatName = getCatalogueNameFrom(objidentifier);
+	public boolean purge(final String resCatName) throws IOException, URISyntaxException {
 		try (CloseableHttpClient client = HttpClients.createDefault()) {
 			URIBuilder builder = new URIBuilder(getGcatBaseURL() + itemPath + "/" + resCatName)
 				.addParameter("purge", "true");
@@ -158,10 +157,6 @@ public class GCatAPIClient {
 		return deleted;
 	}
 
-	protected String getCatalogueNameFrom(final String objIdentifier) {
-		return objIdentifier.replaceAll(":", "-");
-	}
-
 	public String getGcatBaseURL() {
 		return gcatBaseURL;
 	}