diff --git a/slides/structs.md b/slides/structs.md
index b826922bbe5235c8355244b010c652a9f1936a2b..3827ab679a34ba05ae8c108826c179ac573e6931 100644
--- a/slides/structs.md
+++ b/slides/structs.md
@@ -59,7 +59,7 @@ struct fraction frac; // déclaration de frac
 - `typedef`{.C} permet de définir un nouveau type.
 
     ```C
-    typedef unsinged int uint;
+    typedef unsigned int uint;
     typedef struct fraction fraction_t;
     typedef struct fraction {
         int32_t num, denom;