diff --git a/chunkie/@chunkgraph/vertextract.m b/chunkie/@chunkgraph/vertextract.m
index 691ec88..7721b91 100644
--- a/chunkie/@chunkgraph/vertextract.m
+++ b/chunkie/@chunkgraph/vertextract.m
@@ -28,10 +28,11 @@
 irel = find(cgrph.v2emat(:,ivert) ~= 0);
 % extract the indices of the edges which terminate at ivert.
 ieplus = find(cgrph.edgesendverts(2,irel) ==  ivert);
-ieplus = irel(ieplus);
+ieplus = irel(ieplus); ieplus = ieplus(:).';
 % extract the indices of the edges which begin at ivert.
 ieminus  = find(cgrph.edgesendverts(1,irel) == ivert);
-ieminus = irel(ieminus);
+ieminus = irel(ieminus); ieminus = ieminus(:).';
+
 
 % for each incoming edge, get the tangent vector near the end (at the 
 % last discretization node)