diff --git a/src/backends/octave/octaveexpression.cpp b/src/backends/octave/octaveexpression.cpp
--- a/src/backends/octave/octaveexpression.cpp
+++ b/src/backends/octave/octaveexpression.cpp
@@ -38,7 +38,7 @@
     m_plotCommands << QLatin1String("plot") << QLatin1String("semilogx") << QLatin1String("semilogy") << QLatin1String("loglog")
                    << QLatin1String("polar") << QLatin1String("mesh") << QLatin1String("contour") << QLatin1String("bar")
                    << QLatin1String("stairs") << QLatin1String("errorbar") << QLatin1String("surf") << QLatin1String("sombrero")
-                   << QLatin1String("hist") << QLatin1String("fplot") << QLatin1String("imshow");
+                   << QLatin1String("hist") << QLatin1String("fplot") << QLatin1String("imshow") << QLatin1String("plot3");
     m_plotCommands << QLatin1String("cantor_plot2d") << QLatin1String("cantor_plot3d");
 }