diff --git a/src/latex-struct/AddSpaces.vala b/src/latex-struct/AddSpaces.vala
index cd935ad..22ae12b 100644
--- a/src/latex-struct/AddSpaces.vala
+++ b/src/latex-struct/AddSpaces.vala
@@ -33,7 +33,7 @@ namespace LAview {
 			 */
 			public AddSpaces () {}
 
-			protected override ADocList create_default_instance () { return new AddSpaces (); }
+			protected override ADocList<AddSpace> create_default_instance () { return new AddSpaces (); }
 
 			/**
 			 * Gets a copy of the ``AddSpaces``.
diff --git a/src/latex-struct/ColParams.vala b/src/latex-struct/ColParams.vala
index 3503898..ff6b163 100644
--- a/src/latex-struct/ColParams.vala
+++ b/src/latex-struct/ColParams.vala
@@ -7,7 +7,7 @@ namespace LAview {
 		 */
 		public class ColParams : ADocList<ColParam> {
 
-			protected override ADocList create_default_instance () { return new ColParams (); }
+			protected override ADocList<ColParam> create_default_instance () { return new ColParams (); }
 
 			/**
 			 * Constructs a new empty ``ColParams``.
diff --git a/src/latex-struct/Glob.vala b/src/latex-struct/Glob.vala
index fe4a106..03c5f67 100644
--- a/src/latex-struct/Glob.vala
+++ b/src/latex-struct/Glob.vala
@@ -5,7 +5,7 @@ namespace LAview {
 	 */
 	public class Glob : ADocList<IDoc> {
 
-		protected override ADocList create_default_instance () { return new Glob (); }
+		protected override ADocList<IDoc> create_default_instance () { return new Glob (); }
 
 		/**
 		 * Constructs a new empty ``Glob``.
diff --git a/src/latex-struct/Row.vala b/src/latex-struct/Row.vala
index 0b7463a..03fd42f 100644
--- a/src/latex-struct/Row.vala
+++ b/src/latex-struct/Row.vala
@@ -137,7 +137,7 @@ namespace LAview {
 			 */
 			public Row () {}
 
-			protected override ADocList create_default_instance () { return new Row (); }
+			protected override ADocList<Cell> create_default_instance () { return new Row (); }
 
 			/**
 			 * Gets a copy of the ``Row``.
diff --git a/src/latex-struct/Subtable.vala b/src/latex-struct/Subtable.vala
index fe4fc66..49e1f42 100644
--- a/src/latex-struct/Subtable.vala
+++ b/src/latex-struct/Subtable.vala
@@ -27,7 +27,7 @@ namespace LAview {
 			 */
 			public AddSpaces.Style style { get; set; }
 
-			protected override ADocList create_default_instance () { return new Subtable (); }
+			protected override ADocList<Row> create_default_instance () { return new Subtable (); }
 
 			/**
 			 * Constructs a new empty ``Subtable``.