diff --git a/src/civetweb.c b/src/civetweb.c
index 35915dd5..7414cc21 100644
--- a/src/civetweb.c
+++ b/src/civetweb.c
@@ -6755,6 +6755,7 @@ handle_static_file_request(struct mg_connection *conn,
 }
 
 
+#if !defined(NO_CACHING)
 static void
 handle_not_modified_static_file_request(struct mg_connection *conn,
                                         struct file *filep)
@@ -6786,6 +6787,7 @@ handle_not_modified_static_file_request(struct mg_connection *conn,
 	                etag,
 	                suggest_connection_header(conn));
 }
+#endif
 
 
 void