diff --git a/libavdevice/bktr.c b/libavdevice/bktr.c
index 8dd4e3ae0a67a81ffb83473fcfcbc2b499b76864..1a8562c0167c6fe3ffbd7d2085839d038be8cd69 100644
--- a/libavdevice/bktr.c
+++ b/libavdevice/bktr.c
@@ -47,7 +47,6 @@
 #include <sys/time.h>
 #include <signal.h>
 #include <stdint.h>
-#include <strings.h>
 
 typedef struct {
     AVClass *class;
diff --git a/libavdevice/dv1394.c b/libavdevice/dv1394.c
index 1ac9a81c97b0c5f8a6fbba2e71cc2baf15fd7b18..69e59ec19b6afe854611761f2f97f8b55256dc54 100644
--- a/libavdevice/dv1394.c
+++ b/libavdevice/dv1394.c
@@ -28,7 +28,6 @@
 #include <sys/mman.h>
 #include <sys/time.h>
 #include <time.h>
-#include <strings.h>
 
 #include "libavutil/log.h"
 #include "libavutil/opt.h"
diff --git a/libavdevice/v4l.c b/libavdevice/v4l.c
index 5fc91d37beb57beff787e89c7109e5740b2fd9f5..d848e2b64516ca32e54079419ab7d3912312baea 100644
--- a/libavdevice/v4l.c
+++ b/libavdevice/v4l.c
@@ -39,7 +39,6 @@
 #define _LINUX_TIME_H 1
 #include <linux/videodev.h>
 #include <time.h>
-#include <strings.h>
 
 typedef struct {
     AVClass *class;
diff --git a/libavformat/os_support.c b/libavformat/os_support.c
index c6715f3cc31e2cfc023248ace8288abfffe6d97e..889a005eebbdd36201b7a528aa5654adb40bdfd8 100644
--- a/libavformat/os_support.c
+++ b/libavformat/os_support.c
@@ -71,7 +71,6 @@ int ff_win32_open(const char *filename_utf8, int oflag, int pmode)
 
 #if !HAVE_INET_ATON
 #include <stdlib.h>
-#include <strings.h>
 
 int ff_inet_aton (const char * str, struct in_addr * add)
 {
diff --git a/libavformat/rtpdec_latm.c b/libavformat/rtpdec_latm.c
index 42317a95293df074fd4decaf4014d766500db806..96f4e83c6eddb51e0e2f02045f792a149038bb7d 100644
--- a/libavformat/rtpdec_latm.c
+++ b/libavformat/rtpdec_latm.c
@@ -23,7 +23,6 @@
 #include "internal.h"
 #include "libavutil/avstring.h"
 #include "libavcodec/get_bits.h"
-#include <strings.h>
 
 struct PayloadContext {
     AVIOContext *dyn_buf;
diff --git a/libavformat/wtv.c b/libavformat/wtv.c
index cdb5c49fb637ba6579f8325995b527107e31e616..c3bc083201f424be45cc523850a10a2300e44bb5 100644
--- a/libavformat/wtv.c
+++ b/libavformat/wtv.c
@@ -33,7 +33,6 @@
 #include "riff.h"
 #include "asf.h"
 #include "mpegts.h"
-#include <strings.h>
 
 /* Macros for formating GUIDs */
 #define PRI_GUID \
diff --git a/libavutil/dict.c b/libavutil/dict.c
index 3ea7e55b30ab5e0e022c4137d71708e933631eef..cb5f7b160fe24c48df1b457d0195c05c8b0ed3ef 100644
--- a/libavutil/dict.c
+++ b/libavutil/dict.c
@@ -18,7 +18,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <strings.h>
 #include "avstring.h"
 #include "dict.h"
 #include "internal.h"