diff --git a/Lo-Res-Graphics-Library.md b/Lo-Res-Graphics-Library.md
index 0e4d248..2adae04 100644
--- a/Lo-Res-Graphics-Library.md
+++ b/Lo-Res-Graphics-Library.md
@@ -27,6 +27,6 @@ grLine(buff, x1, y1, x2, y2)#0
 grClear(buff, clr)#0
 ```
 
-**Source Code:** [`gr.pla`](https://github.com/dschmenk/PLASMA/blob/master/src/libsrc/apple/gr.pla)
+**Source Code:** [`grlib.pla`](https://github.com/dschmenk/PLASMA/blob/master/src/libsrc/apple/grlib.pla)
 
 **Sample Source:** [`grtest.pla`](https://github.com/dschmenk/PLASMA/blob/master/src/samplesrc/grtest.pla)
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