diff --git a/lib/Core/Plot.cpp b/lib/Core/Plot.cpp
index 4b23ac6..6133241 100644
--- a/lib/Core/Plot.cpp
+++ b/lib/Core/Plot.cpp
@@ -335,6 +335,7 @@ PlotMatrixNoRange::PlotMatrixNoRange(const DMat &m)
 {
     string tmpFileName = dumpToTmpFile(m);
     
+    pushTmpFile(tmpFileName);
     setCommand("'" + tmpFileName + "' matrix w image");
 }