diff --git a/05/README.md b/05/README.md
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--- a/05/README.md
+++ b/05/README.md
@@ -93,7 +93,7 @@ At the end of the last exercise we introduced some new functions. Now it’s tim
 
 ### Advance shaping functions
 
-[Golan Levin](http://www.flong.com/) has great documentation of more complex shaping functions that are extraordinarily helpful. Porting them to GLSL is a really smart move, to start builidng your own resource of snippets of code.
+[Golan Levin](http://www.flong.com/) has great documentation of more complex shaping functions that are extraordinarily helpful. Porting them to GLSL is a really smart move, to start building your own resource of snippets of code.
 
 * Polynomial Shaping Functions: [www.flong.com/texts/code/shapers_poly](http://www.flong.com/texts/code/shapers_poly/)