diff --git a/headers/os/interface/LayoutBuilder.h b/headers/os/interface/LayoutBuilder.h
index 7e9bda0c14..3b50c7d494 100644
--- a/headers/os/interface/LayoutBuilder.h
+++ b/headers/os/interface/LayoutBuilder.h
@@ -111,6 +111,7 @@ public:
 	inline	ThisBuilder&		SetExplicitMinSize(BSize size);
 	inline	ThisBuilder&		SetExplicitMaxSize(BSize size);
 	inline	ThisBuilder&		SetExplicitPreferredSize(BSize size);
+	inline	ThisBuilder&		SetExplicitAlignment(BAlignment alignment);
 
 	inline						operator BGroupLayout*();
 
@@ -206,6 +207,7 @@ public:
 	inline	ThisBuilder&		SetExplicitMinSize(BSize size);
 	inline	ThisBuilder&		SetExplicitMaxSize(BSize size);
 	inline	ThisBuilder&		SetExplicitPreferredSize(BSize size);
+	inline	ThisBuilder&		SetExplicitAlignment(BAlignment alignment);
 
 	inline						operator BGridLayout*();
 
@@ -642,6 +644,15 @@ Group<ParentBuilder>::SetExplicitPreferredSize(BSize size)
 }
 
 
+template<typename ParentBuilder>
+typename Group<ParentBuilder>::ThisBuilder&
+Group<ParentBuilder>::SetExplicitAlignment(BAlignment alignment)
+{
+	fLayout->SetExplicitAlignment(alignment);
+	return *this;
+}
+
+
 template<typename ParentBuilder>
 Group<ParentBuilder>::operator BGroupLayout*()
 {
@@ -955,6 +966,15 @@ Grid<ParentBuilder>::SetExplicitPreferredSize(BSize size)
 }
 
 
+template<typename ParentBuilder>
+typename Grid<ParentBuilder>::ThisBuilder&
+Grid<ParentBuilder>::SetExplicitAlignment(BAlignment alignment)
+{
+	fLayout->SetExplicitAlignment(alignment);
+	return *this;
+}
+
+
 template<typename ParentBuilder>
 Grid<ParentBuilder>::operator BGridLayout*()
 {