diff --git a/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java b/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java
index 06d0b91..ac105f0 100644
--- a/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java
+++ b/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java
@@ -713,6 +713,7 @@
 		Composite trComp = new Composite(tabFolder, SWT.NONE);
 		RowLayout rl = new RowLayout();
 		trComp.setLayout(rl);
+		rl.spacing = 0;
 		rl.marginBottom = rl.marginTop = rl.marginRight = rl.marginLeft = 0;
 		tabFolder.setTopRight(trComp, SWT.RIGHT | SWT.WRAP);