diff --git a/apps/plugin.h b/apps/plugin.h
index 3ffaafce2f..2ff2381890 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -36,6 +36,7 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 void* plugin_get_buffer(size_t *buffer_size);