diff --git a/libavutil/lfg.h b/libavutil/lfg.h
index 2b669205d1..9a1e277acd 100644
--- a/libavutil/lfg.h
+++ b/libavutil/lfg.h
@@ -27,7 +27,7 @@
 /**
  * Context structure for the Lagged Fibonacci PRNG.
  * The exact layout, types and content of this struct may change and should
- * not be accessed directly. Only its sizeof() is guranteed to stay the same
+ * not be accessed directly. Only its sizeof() is guaranteed to stay the same
  * to allow easy instanciation.
  */
 typedef struct AVLFG {