diff --git a/src/dummy/i_system.c b/src/dummy/i_system.c
index 5c0f7eb99..4a657ed19 100644
--- a/src/dummy/i_system.c
+++ b/src/dummy/i_system.c
@@ -16,6 +16,11 @@ tic_t I_GetTime(void)
 	return 0;
 }
 
+int I_GetTimeMicros(void)
+{
+	return 0;
+}
+
 void I_Sleep(void){}
 
 void I_GetEvent(void){}