diff --git a/extras/src/main/java/edu/umd/cs/piccolox/PFrame.java b/extras/src/main/java/edu/umd/cs/piccolox/PFrame.java
index 472c9f0..770b52f 100644
--- a/extras/src/main/java/edu/umd/cs/piccolox/PFrame.java
+++ b/extras/src/main/java/edu/umd/cs/piccolox/PFrame.java
@@ -172,7 +172,7 @@
      *            not.
      */
     public void setFullScreenMode(final boolean fullScreenMode) {
-        if (fullScreenMode != isFullScreenMode()) {
+        if (fullScreenMode != isFullScreenMode() || !isVisible()) {
             if (fullScreenMode) {
                 switchToFullScreenMode();
             }