diff --git a/media/mca/filterfw/native/core/value.cpp b/media/mca/filterfw/native/core/value.cpp
index 04bf0ef3c3371..c0ea763456b8a 100644
--- a/media/mca/filterfw/native/core/value.cpp
+++ b/media/mca/filterfw/native/core/value.cpp
@@ -16,6 +16,7 @@
 
 #include <stddef.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "value.h"
 
diff --git a/media/mca/filterpacks/native/imageproc/brightness.c b/media/mca/filterpacks/native/imageproc/brightness.c
index f4addf1eaf18b..3c3652fb0613d 100644
--- a/media/mca/filterpacks/native/imageproc/brightness.c
+++ b/media/mca/filterpacks/native/imageproc/brightness.c
@@ -16,6 +16,7 @@
 
 #include <android/log.h>
 #include <stdlib.h>
+#include <string.h>
 
 #define  LOGI(...) __android_log_print(ANDROID_LOG_INFO, "MCA", __VA_ARGS__)
 #define  LOGW(...) __android_log_print(ANDROID_LOG_WARN, "MCA", __VA_ARGS__)
diff --git a/media/mca/filterpacks/native/imageproc/contrast.c b/media/mca/filterpacks/native/imageproc/contrast.c
index ea8c8d2c9a7b2..31c975c20984a 100644
--- a/media/mca/filterpacks/native/imageproc/contrast.c
+++ b/media/mca/filterpacks/native/imageproc/contrast.c
@@ -16,6 +16,7 @@
 
 #include <android/log.h>
 #include <stdlib.h>
+#include <string.h>
 
 #define  LOGI(...) __android_log_print(ANDROID_LOG_INFO, "MCA", __VA_ARGS__)
 #define  LOGW(...) __android_log_print(ANDROID_LOG_WARN, "MCA", __VA_ARGS__)