diff --git a/src/add-ons/screen_savers/ifs/IFS.cpp b/src/add-ons/screen_savers/ifs/IFS.cpp
index be639b2663..2c72ddf361 100644
--- a/src/add-ons/screen_savers/ifs/IFS.cpp
+++ b/src/add-ons/screen_savers/ifs/IFS.cpp
@@ -155,6 +155,9 @@ IFS::IFS(BRect bounds)
 	fAdditive(false),
 	fCurrentMarkValue(1)
 {
+	if (!bounds.IsValid())
+		return;
+	
 	ya_rand_init(system_time());
 
 	int         i;