diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java b/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
index 57b5d98..38d26eb 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
@@ -278,8 +278,8 @@
 							String[] minmax = parseEmptySegments(emptySegments);
 							Integer min = Integer.parseInt(minmax[0]);
 							Integer max = Integer.parseInt(minmax[1]);
-							sequence.put("offset-min", min);
-							sequence.put("offset-max", max);
+							sequence.put("offset-min", min-1);
+							sequence.put("offset-max", max-1);
 						}
 						sequence.put("operands", sequenceOperands);
 						objectStack.push(sequence);
@@ -893,8 +893,8 @@
 
 	private String[] parseEmptySegments(ParseTree emptySegments) {
 		String[] minmax = new String[2];
-		Integer min = 0;
-		Integer max = 0;
+		Integer min = 1;
+		Integer max = 1;
 		ParseTree child;
 		for (int i=0; i<emptySegments.getChildCount()-1; i++) {
 			child = emptySegments.getChild(i);
diff --git a/src/test/java/PoliqarpPlusTreeTest.java b/src/test/java/PoliqarpPlusTreeTest.java
index b08a315..217d621 100644
--- a/src/test/java/PoliqarpPlusTreeTest.java
+++ b/src/test/java/PoliqarpPlusTreeTest.java
@@ -110,7 +110,7 @@
 		// [base=der][][base=Mann]
 		String et1 = 
 			"{@type=korap:group, operation=operation:sequence, inOrder=true, distances=[" +
-				"{@type=korap:distance, key=w, min=1, max=1}" +
+				"{@type=korap:distance, key=w, min=2, max=2}" +
 			"], " +
 			"operands=[" +
 				"{@type=korap:token, wrap={@type=korap:term, key=der, layer=lemma, match=match:eq}}," +
@@ -123,7 +123,7 @@
 		// [base=der][][][base=Mann]
 		String et2 = 
 			"{@type=korap:group, operation=operation:sequence, inOrder=true, distances=[" +
-				"{@type=korap:distance, key=w, min=2, max=2}" +
+				"{@type=korap:distance, key=w, min=3, max=3}" +
 			"], " +
 			"operands=[" +
 				"{@type=korap:token, wrap={@type=korap:term, key=der, layer=lemma, match=match:eq}}," +
@@ -136,7 +136,7 @@
 		// [base=der][][]?[base=Mann]
 		String et3 = 
 			"{@type=korap:group, operation=operation:sequence, inOrder=true, distances=[" +
-				"{@type=korap:distance, key=w, min=1, max=2}" +
+				"{@type=korap:distance, key=w, min=2, max=3}" +
 			"], " +
 			"operands=[" +
 				"{@type=korap:token, wrap={@type=korap:term, key=der, layer=lemma, match=match:eq}}," +
@@ -162,12 +162,12 @@
 		// [base=der][]{2,5}[base=Mann][]?[][base=Frau]   nested distances=
 		String et5 = 
 				"{@type=korap:group, operation=operation:sequence, inOrder=true, distances=[" +
-					"{@type=korap:distance, key=w, min=2, max=5}" +
+					"{@type=korap:distance, key=w, min=3, max=6}" +
 				"], " +
 				"operands=[" +
 					"{@type=korap:token, wrap={@type=korap:term, key=der, layer=lemma, match=match:eq}}," +
 					"{@type=korap:group, operation=operation:sequence, inOrder=true, distances=[" +
-						"{@type=korap:distance, key=w, min=1, max=2}" +
+						"{@type=korap:distance, key=w, min=2, max=3}" +
 					"], " +
 					"operands=[" +
 						"{@type=korap:token, wrap={@type=korap:term, key=Mann, layer=lemma, match=match:eq}}," +