diff --git a/motorApp/NewportSrc/strtok_r.h b/motorApp/NewportSrc/strtok_r.h
index 0695d97e..82f2cc04 100644
--- a/motorApp/NewportSrc/strtok_r.h
+++ b/motorApp/NewportSrc/strtok_r.h
@@ -1,2 +1,9 @@
 /* strtok_r prototype */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
 char* strtok_r(char *, const char *, char **);
+#ifdef __cplusplus
+}
+#endif