diff --git a/pyglet/media/codecs/ffmpeg_lib/libavcodec.py b/pyglet/media/codecs/ffmpeg_lib/libavcodec.py
index 42b4a609..c99d39de 100644
--- a/pyglet/media/codecs/ffmpeg_lib/libavcodec.py
+++ b/pyglet/media/codecs/ffmpeg_lib/libavcodec.py
@@ -46,7 +46,7 @@ import pyglet.lib
 from . import libavutil
 
 avcodec = pyglet.lib.load_library(
-    'avcodec',
+    'libavcodec.so.58',
     win32='avcodec-58',
     darwin='avcodec.58'
 )
diff --git a/pyglet/media/codecs/ffmpeg_lib/libavformat.py b/pyglet/media/codecs/ffmpeg_lib/libavformat.py
index 51d37e95..b25d6c25 100644
--- a/pyglet/media/codecs/ffmpeg_lib/libavformat.py
+++ b/pyglet/media/codecs/ffmpeg_lib/libavformat.py
@@ -45,7 +45,7 @@ from . import libavcodec
 from . import libavutil
 
 avformat = pyglet.lib.load_library(
-    'avformat',
+    'libavformat.so.58',
     win32='avformat-58',
     darwin='avformat.58'
 )
diff --git a/pyglet/media/codecs/ffmpeg_lib/libavutil.py b/pyglet/media/codecs/ffmpeg_lib/libavutil.py
index bb1aa01b..69588391 100644
--- a/pyglet/media/codecs/ffmpeg_lib/libavutil.py
+++ b/pyglet/media/codecs/ffmpeg_lib/libavutil.py
@@ -43,7 +43,7 @@ import pyglet
 import pyglet.lib
 
 avutil = pyglet.lib.load_library(
-    'avutil',
+    'libavutil.so.56',
     win32='avutil-56',
     darwin='avutil.56'
 )
diff --git a/pyglet/media/codecs/ffmpeg_lib/libswresample.py b/pyglet/media/codecs/ffmpeg_lib/libswresample.py
index 94721083..d8fc5b30 100644
--- a/pyglet/media/codecs/ffmpeg_lib/libswresample.py
+++ b/pyglet/media/codecs/ffmpeg_lib/libswresample.py
@@ -43,7 +43,7 @@ import pyglet
 import pyglet.lib
 
 swresample = pyglet.lib.load_library(
-    'swresample',
+    'libswresample.so.3',
     win32='swresample-3',
     darwin='swresample.3'
 )
diff --git a/pyglet/media/codecs/ffmpeg_lib/libswscale.py b/pyglet/media/codecs/ffmpeg_lib/libswscale.py
index 5d430878..b6abe3b2 100644
--- a/pyglet/media/codecs/ffmpeg_lib/libswscale.py
+++ b/pyglet/media/codecs/ffmpeg_lib/libswscale.py
@@ -43,7 +43,7 @@ import pyglet
 import pyglet.lib
 
 swscale = pyglet.lib.load_library(
-    'swscale',
+    'libswscale.so.5',
     win32='swscale-5',
     darwin='swscale.5'
 )