diff --git a/labs/lab1-parallel-box-blur-filter/README.md b/labs/lab1-parallel-box-blur-filter/README.md
index 48da29b466ed264741019ecc6ecb61b4c37ce0f9..1837af91a6c8bdae13e188138e4e8ad6c84a187e 100755
--- a/labs/lab1-parallel-box-blur-filter/README.md
+++ b/labs/lab1-parallel-box-blur-filter/README.md
@@ -59,7 +59,7 @@ By the time you are finished with this assignment, you will:
 ## Preliminaries
 
 Before we begin, we need to cover some basic data types and helper methods.
-These utilities have already been implemented in the package object (in the file `package.scala`) for this
+These utilities have already been implemented in the package object (in the file `common.scala`) for this
 exercise.
 First, we will use the `RGBA` type to refer to the value of an image pixel.
 We will limit ourselves to 32-bit pixel depth images, so we define `RGBA` to