diff --git a/src/main/resources/assets/computercraft/lua/rom/programs/copy.lua b/src/main/resources/assets/computercraft/lua/rom/programs/copy.lua
index c70cd0a64..8158b84a5 100644
--- a/src/main/resources/assets/computercraft/lua/rom/programs/copy.lua
+++ b/src/main/resources/assets/computercraft/lua/rom/programs/copy.lua
@@ -10,12 +10,14 @@ local sDest = shell.resolve( tArgs[2] )
 local tFiles = fs.find( sSource )
 if #tFiles > 0 then
     for n,sFile in ipairs( tFiles ) do
-        if fs.exists( sDest ) == true then
-            printError( "Destination exists" )
-        elseif fs.isDir( sDest ) then
+        if fs.isDir( sDest ) then
             fs.copy( sFile, fs.combine( sDest, fs.getName(sFile) ) )
         elseif #tFiles == 1 then
-            fs.copy( sFile, sDest )
+            if fs.exists( sDest ) then
+                 printError( "Destination exists" )
+            else
+                 fs.copy( sFile, sDest )
+            end
         else
             printError( "Cannot overwrite file multiple times" )
             return
diff --git a/src/main/resources/assets/computercraft/lua/rom/programs/mkdir.lua b/src/main/resources/assets/computercraft/lua/rom/programs/mkdir.lua
index cace3bd55..ed6c5e378 100644
--- a/src/main/resources/assets/computercraft/lua/rom/programs/mkdir.lua
+++ b/src/main/resources/assets/computercraft/lua/rom/programs/mkdir.lua
@@ -6,7 +6,7 @@ end
 
 local sNewDir = shell.resolve( tArgs[1] )
 
-if fs.exists( sNewDir ) == true then
+if fs.exists( sNewDir ) then
     printError( "Destination exists" )
     return
 end
diff --git a/src/main/resources/assets/computercraft/lua/rom/programs/rename.lua b/src/main/resources/assets/computercraft/lua/rom/programs/rename.lua
index 411019787..f22561c26 100644
--- a/src/main/resources/assets/computercraft/lua/rom/programs/rename.lua
+++ b/src/main/resources/assets/computercraft/lua/rom/programs/rename.lua
@@ -7,7 +7,7 @@ end
 local sSource = shell.resolve( tArgs[1] )
 local sDest = shell.resolve( tArgs[2] )
 
-if fs.exists( sDest ) == true then
+if fs.exists( sDest ) then
     printError( "Destination exists" )
 end