diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 804d52f683be7dc44b99f6d5ec7c965636962ae7..27d952d17c77cfacba8248d7dea506e9423043da 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -257,7 +257,7 @@ struct AVFilterPad
     enum CodecType type;
 
     /**
-     * Minimum required permissions on incoming buffers.  Any buffers with
+     * Minimum required permissions on incoming buffers.  Any buffer with
      * insufficient permissions will be automatically copied by the filter
      * system to a new buffer which provides the needed access permissions.
      *
@@ -267,7 +267,7 @@ struct AVFilterPad
 
     /**
      * Permissions which are not accepted on incoming buffers.  Any buffer
-     * which has any of these permissions set be automatically copied by the
+     * which has any of these permissions set will be automatically copied by the
      * filter system to a new buffer which does not have those permissions.
      * This can be used to easily disallow buffers with AV_PERM_REUSE.
      *