diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/oa/merge/AuthorMerger.java b/dhp-common/src/main/java/eu/dnetlib/dhp/oa/merge/AuthorMerger.java
index a1c3c2cc0..62e6764b7 100644
--- a/dhp-common/src/main/java/eu/dnetlib/dhp/oa/merge/AuthorMerger.java
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/oa/merge/AuthorMerger.java
@@ -222,7 +222,7 @@ public class AuthorMerger {
 					nl -> pr
 						.getName()
 						.stream()
-						.anyMatch(nr -> nr.substring(0, 1).equalsIgnoreCase(nl.substring(0, 1)))))
+						.anyMatch(nr -> nr.equalsIgnoreCase(nl))))
 				return true;
 		}
 
@@ -236,7 +236,6 @@ public class AuthorMerger {
 	}
 	//
 
-
 	/**
 	 * Method to enrich ORCID information in one list of authors based on another list
 	 * @param baseAuthor the Author List in the OAF Entity
diff --git a/dhp-common/src/test/java/eu/dnetlib/oa/merge/AuthorMergerTest.java b/dhp-common/src/test/java/eu/dnetlib/oa/merge/AuthorMergerTest.java
index a11d49b1e..c0a8d6927 100644
--- a/dhp-common/src/test/java/eu/dnetlib/oa/merge/AuthorMergerTest.java
+++ b/dhp-common/src/test/java/eu/dnetlib/oa/merge/AuthorMergerTest.java
@@ -19,15 +19,19 @@ import eu.dnetlib.dhp.schema.oaf.Author;
 
 public class AuthorMergerTest {
 
-
 	@Test
 	public void testEnrcichAuthor() throws Exception {
 		final ObjectMapper mapper = new ObjectMapper();
 
 		BufferedReader pr = new BufferedReader(new InputStreamReader(
-				Objects.requireNonNull(AuthorMergerTest.class.getResourceAsStream("/eu/dnetlib/dhp/oa/merge/authors_publication_sample.json"))));
+			Objects
+				.requireNonNull(
+					AuthorMergerTest.class
+						.getResourceAsStream("/eu/dnetlib/dhp/oa/merge/authors_publication_sample.json"))));
 		BufferedReader or = new BufferedReader(new InputStreamReader(
-				Objects.requireNonNull(AuthorMergerTest.class.getResourceAsStream("/eu/dnetlib/dhp/oa/merge/authors_orcid_sample.json"))));
+			Objects
+				.requireNonNull(
+					AuthorMergerTest.class.getResourceAsStream("/eu/dnetlib/dhp/oa/merge/authors_orcid_sample.json"))));
 
 		TypeReference<List<Author>> aclass = new TypeReference<List<Author>>() {
 		};