diff --git a/JET/psirz.m b/JET/psirz.m
index ffab4a7277a28bf729ba19b2d850f719bfda51c5..72abd3a4cbb9d87a4d425fb5ec624076ee86c6cd 100644
--- a/JET/psirz.m
+++ b/JET/psirz.m
@@ -101,7 +101,7 @@ if ncont>0
   figure
   contour(r,z,psinrz',ncont);
   hold on
-  [h1, h2]=contour(r,z,psinrz',[1 1]);
+  [h1, h2]=contour(r,z,psinrz',[1 1],'k');
   for i=1:length(h2)
     set(h2(i),'LineWidth',2);
   end