diff --git a/world1/06_adding-some-action/creating bullets/main.lua b/world1/06_adding-some-action/creating-bullets/main.lua
similarity index 100%
rename from world1/06_adding-some-action/creating bullets/main.lua
rename to world1/06_adding-some-action/creating-bullets/main.lua
diff --git a/world1/06_adding-some-action/destroying bullets/main.lua b/world1/06_adding-some-action/destroying-bullets/main.lua
similarity index 100%
rename from world1/06_adding-some-action/destroying bullets/main.lua
rename to world1/06_adding-some-action/destroying-bullets/main.lua