diff --git a/updatedshmup.p8 b/updatedshmup.p8
index a02d762..689e64b 100644
--- a/updatedshmup.p8
+++ b/updatedshmup.p8
@@ -187,7 +187,7 @@ function updategame()
    local pbox, pded = hurtbox(ps), false
    eships:strip(
     function(es)
-     if (~collides(pbox, hurtbox(es))) return
+     if (not collides(pbox, hurtbox(es))) return
      pded = pded or ps:hitship(es)
      return es:hitship(ps)
     end
@@ -200,7 +200,7 @@ function updategame()
    local pbox, pded = hurtbox(ps), false
    ebullets:strip(
     function(eb)
-     if (~collides(pbox, hurtbox(eb))) return
+     if (not collides(pbox, hurtbox(eb))) return
      pded = pded or ps:hitbullet(eb)
      return eb:hitship(ps)
     end