diff --git a/hal/audio_extn/usb.c b/hal/audio_extn/usb.c
index 88e3cad..699c3b7 100644
--- a/hal/audio_extn/usb.c
+++ b/hal/audio_extn/usb.c
@@ -152,7 +152,7 @@
 
     file_size = st.st_size;
 
-    read_buf = (char *)calloc(1, USB_BUFF_SIZE);
+    read_buf = (char *)calloc(1, USB_BUFF_SIZE + 1);
     err = read(fd, read_buf, USB_BUFF_SIZE);
     str_start = strstr(read_buf, type);
     if (str_start == NULL) {