diff --git a/src/pico_time.c b/src/pico_time.c
index 01dca62..3c3499f 100644
--- a/src/pico_time.c
+++ b/src/pico_time.c
@@ -17,6 +17,9 @@
 
 #include "picokeys.h"
 #include "pico_time.h"
+#ifdef ESP_PLATFORM
+#include <sys/time.h>
+#endif
 
 #ifdef _MSC_VER
 #include <windows.h>
diff --git a/src/pico_time.h b/src/pico_time.h
index 1683bb9..fe1109d 100644
--- a/src/pico_time.h
+++ b/src/pico_time.h
@@ -23,6 +23,7 @@
 #include "bsp/board.h"
 #elif defined(ESP_PLATFORM)
 #include "compat/esp_compat.h"
+#include <time.h>
 #else
 #include <sys/time.h>
 #include <time.h>