diff --git a/src/defs.txt b/src/defs.txt
index e27f9ea..72f31af 100644
--- a/src/defs.txt
+++ b/src/defs.txt
@@ -39,6 +39,7 @@ actor -8000 -1000 -100 monolith
 
 actor -3300 10 0 pizzeria
     scale 40
+    mass 1000000
     rotationy -0.25
     angularmomentum 0 0 0
     actor -3400 73 -13 pizzasign