diff --git a/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/cfg/LuceneIndexSettings.java b/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/cfg/LuceneIndexSettings.java
index 17943931cda..b2de382d4e7 100644
--- a/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/cfg/LuceneIndexSettings.java
+++ b/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/cfg/LuceneIndexSettings.java
@@ -192,7 +192,7 @@ private LuceneIndexSettings() {
 	 *
 	 * @see LogByteSizeMergePolicy#setMaxMergeMBForForcedMerge(double)
 	 */
-	public static final String WRITER_MERGE_MAX_OPTIMIZE_SIZE = WRITER_PREFIX + WriterRadicals.MERGE_MAX_OPTIMIZE_SIZE;
+	public static final String WRITER_MERGE_MAX_OPTIMIZE_SIZE = WRITER_PREFIX + WriterRadicals.MERGE_MAX_FORCED_SIZE;
 
 	/**
 	 * The value to pass to {@link LogByteSizeMergePolicy#setCalibrateSizeByDeletes(boolean)}.
@@ -307,7 +307,7 @@ private WriterRadicals() {
 		public static final String MERGE_FACTOR = "merge_factor";
 		public static final String MERGE_MIN_SIZE = "merge_min_size";
 		public static final String MERGE_MAX_SIZE = "merge_max_size";
-		public static final String MERGE_MAX_OPTIMIZE_SIZE = "merge_max_optimize_size";
+		public static final String MERGE_MAX_FORCED_SIZE = "merge_max_forced_size";
 		public static final String MERGE_CALIBRATE_BY_DELETES = "merge_calibrate_by_deletes";
 	}
 
diff --git a/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/lowlevel/writer/impl/IndexWriterSettings.java b/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/lowlevel/writer/impl/IndexWriterSettings.java
index fa034831651..89c8444bf4d 100644
--- a/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/lowlevel/writer/impl/IndexWriterSettings.java
+++ b/backend/lucene/src/main/java/org/hibernate/search/backend/lucene/lowlevel/writer/impl/IndexWriterSettings.java
@@ -11,7 +11,7 @@
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MAX_MERGE_DOCS;
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_CALIBRATE_BY_DELETES;
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_FACTOR;
-import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_MAX_OPTIMIZE_SIZE;
+import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_MAX_FORCED_SIZE;
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_MAX_SIZE;
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.MERGE_MIN_SIZE;
 import static org.hibernate.search.backend.lucene.cfg.LuceneIndexSettings.WriterRadicals.RAM_BUFFER_SIZE;
@@ -69,7 +69,7 @@ public static List<IndexWriterSettingValue<?>> extractAll(ConfigurationPropertyS
 		registerIntegerMergePolicySetting( MERGE_FACTOR, LogByteSizeMergePolicy::setMergeFactor );
 		registerIntegerMergePolicySetting( MERGE_MIN_SIZE, LogByteSizeMergePolicy::setMinMergeMB );
 		registerIntegerMergePolicySetting( MERGE_MAX_SIZE, LogByteSizeMergePolicy::setMaxMergeMB );
-		registerIntegerMergePolicySetting( MERGE_MAX_OPTIMIZE_SIZE, LogByteSizeMergePolicy::setMaxMergeMBForForcedMerge );
+		registerIntegerMergePolicySetting( MERGE_MAX_FORCED_SIZE, LogByteSizeMergePolicy::setMaxMergeMBForForcedMerge );
 		registerBooleanMergePolicySetting( MERGE_CALIBRATE_BY_DELETES, LogByteSizeMergePolicy::setCalibrateSizeByDeletes );
 	}