diff --git a/src/initPTB.m b/src/initPTB.m
index a104d31..e2faa67 100644
--- a/src/initPTB.m
+++ b/src/initPTB.m
@@ -30,6 +30,9 @@
     % For octave: to avoid displaying messenging one screen at a time
     more off;
 
+    % Resets the seed of the random number generator
+    setUpRand();
+
     % check for OpenGL compatibility, abort otherwise:
     AssertOpenGL;