diff --git a/data-store/src/main/java/org/lucares/pdb/datastore/lang/ExpressionToDocIdVisitor.java b/data-store/src/main/java/org/lucares/pdb/datastore/lang/ExpressionToDocIdVisitor.java
index a1a7710..70039d1 100644
--- a/data-store/src/main/java/org/lucares/pdb/datastore/lang/ExpressionToDocIdVisitor.java
+++ b/data-store/src/main/java/org/lucares/pdb/datastore/lang/ExpressionToDocIdVisitor.java
@@ -165,7 +165,7 @@ public class ExpressionToDocIdVisitor extends ExpressionVisitor<IntList> {
 
 		final Map<String, IntList> valueToDocId = keyToValueToDocId.getOrDefault(propertyName, EMPTY_VALUES);
 		for (final Entry<String, IntList> entry : valueToDocId.entrySet()) {
-			if (valuePattern.matcher(entry.getKey()).find()) {
+			if (valuePattern.matcher(entry.getKey()).matches()) {
 				result.add(entry.getValue());
 			}
 		}