diff --git a/src/ChangeLog b/src/ChangeLog
index d89b25609b..f0f91406f6 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2007-04-05  Richard Heck  <rgheck@brown.edu>
+
+	* bufferparams.C (writeLaTeX): output lengths as LaTeX strings
+	(useful for foo%) (bug 3416)
+
 2007-04-05  Jean-Marc Lasgouttes  <lasgouttes@lyx.org>
 
 	* lyxlayout.C (Read): set labelstringappendix_ every time
diff --git a/src/bufferparams.C b/src/bufferparams.C
index 98313cde62..77616be12f 100644
--- a/src/bufferparams.C
+++ b/src/bufferparams.C
@@ -888,19 +888,19 @@ bool BufferParams::writeLaTeX(ostream & os, LaTeXFeatures & features,
 			}
 		}
 		if (!topmargin.empty())
-			os << ",tmargin=" << topmargin;
+			os << ",tmargin=" << LyXLength(topmargin).asLatexString();
 		if (!bottommargin.empty())
-			os << ",bmargin=" << bottommargin;
+			os << ",bmargin=" << LyXLength(bottommargin).asLatexString();
 		if (!leftmargin.empty())
-			os << ",lmargin=" << leftmargin;
+			os << ",lmargin=" << LyXLength(leftmargin).asLatexString();
 		if (!rightmargin.empty())
-			os << ",rmargin=" << rightmargin;
+			os << ",rmargin=" << LyXLength(rightmargin).asLatexString();
 		if (!headheight.empty())
-			os << ",headheight=" << headheight;
+			os << ",headheight=" << LyXLength(headheight).asLatexString();
 		if (!headsep.empty())
-			os << ",headsep=" << headsep;
+			os << ",headsep=" << LyXLength(headsep).asLatexString();
 		if (!footskip.empty())
-			os << ",footskip=" << footskip;
+			os << ",footskip=" << LyXLength(footskip).asLatexString();
 		os << "}\n";
 		texrow.newline();
 	}
diff --git a/status.14x b/status.14x
index 95881371b5..4f9f060762 100644
--- a/status.14x
+++ b/status.14x
@@ -37,6 +37,9 @@ What's new
 
 - Don't skip lines after noweb chunks in tex2lyx (bug 3052)
 
+- fix bug when entering relative length (like page%) as margin
+  settings (bug 3416).
+
 - Fix Date external template in windows (bug 3241)
 
 * USER INTERFACE: