diff --git a/doc/encoders.texi b/doc/encoders.texi
index 34403ab5460ee2fb0e0274cc09357201a881c3be..386ac19cca12aef04d60be0fd76bbfd57eed8ebb 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -1271,7 +1271,7 @@ Requires the presence of the libtheora headers and library during
 configuration. You need to explicitly configure the build with
 @code{--enable-libtheora}.
 
-For more informations about the libtheora project see
+For more information about the libtheora project see
 @url{http://www.theora.org/}.
 
 @subsection Options
diff --git a/doc/ffserver.texi b/doc/ffserver.texi
index 4ef30faec9e0cbf2228cc35b09784274de179511..fb90dd650d75ef85121d174f4743b41b8a77e596 100644
--- a/doc/ffserver.texi
+++ b/doc/ffserver.texi
@@ -111,7 +111,7 @@ must be configured in the stream configuration. They are sent to
 the @command{ffmpeg} encoders.
 
 The @command{ffmpeg} @option{override_ffserver} commandline option
-allows to override the encoding parameters set by the server.
+allows one to override the encoding parameters set by the server.
 
 Multiple streams can be connected to the same feed.
 
diff --git a/doc/outdevs.texi b/doc/outdevs.texi
index 328ab06f8e9cf782543240505abc7a7755d71132..bc94b9ed0c7af32ad457da6f51ecad80bb269a16 100644
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@@ -216,7 +216,7 @@ OpenGL output device.
 
 To enable this output device you need to configure FFmpeg with @code{--enable-opengl}.
 
-Device allows to render to OpenGL context.
+This output device allows one to render to OpenGL context.
 Context may be provided by application or default SDL window is created.
 
 When device renders to external context, application must implement handlers for following messages: