diff --git a/libs/pbd/microseconds.cc b/libs/pbd/microseconds.cc
index da7c38d594..2d0810fb74 100644
--- a/libs/pbd/microseconds.cc
+++ b/libs/pbd/microseconds.cc
@@ -25,6 +25,7 @@
 #include <windows.h> // for LARGE_INTEGER
 #endif
 
+#include "pbd/error.h"
 #include "pbd/microseconds.h"
 
 #ifdef PLATFORM_WINDOWS