diff --git a/slides/boucles_conditions.md b/slides/boucles_conditions.md
index 01f7146688e02e4cab225ea249158c4cbfd22a44..d611d48c5e3af3beb857256da06470cb124eb434 100644
--- a/slides/boucles_conditions.md
+++ b/slides/boucles_conditions.md
@@ -122,10 +122,11 @@ if (x) { // si x s'évalue à `vrai`
 ```C
 int main() {
     // ...
-    if (error)
+    if (error) {
 	    return EXIT_FAILURE;
-    else
+    } else {
 	    return EXIT_SUCCESS;
+    }
 }
 ```