diff --git a/jni/feature_mos/src/mosaic_renderer/SurfaceTextureRenderer.cpp b/jni/feature_mos/src/mosaic_renderer/SurfaceTextureRenderer.cpp
index 88aac36..fa56402 100755
--- a/jni/feature_mos/src/mosaic_renderer/SurfaceTextureRenderer.cpp
+++ b/jni/feature_mos/src/mosaic_renderer/SurfaceTextureRenderer.cpp
@@ -16,6 +16,8 @@
 
 #include "SurfaceTextureRenderer.h"
 
+#include <string.h>
+
 #include <GLES2/gl2ext.h>
 const GLfloat g_vVertices[] = {
     -1.f, -1.f, 0.0f, 1.0f,  // Position 0