diff --git a/src_main/io_devices/pidir.cpp b/src_main/io_devices/pidir.cpp
index 0d455ccc..0e07e49a 100755
--- a/src_main/io_devices/pidir.cpp
+++ b/src_main/io_devices/pidir.cpp
@@ -364,7 +364,9 @@ bool PIDir::isExists(const PIString & path) {
 
 
 PIDir PIDir::current() {
+#ifndef ESP_PLATFORM
 	char rc[1024];
+#endif
 #ifdef WINDOWS
 	memset(rc, 0, 1024);
 	if (GetCurrentDirectory(1024, (LPTSTR)rc) == 0) return PIString();