diff --git a/plugins/uicommon.h b/plugins/uicommon.h
index 347ef5dbf..1261ed933 100644
--- a/plugins/uicommon.h
+++ b/plugins/uicommon.h
@@ -37,10 +37,6 @@ using std::set;
 using namespace DFHack;
 using namespace df::enums;
 
-#ifndef HAVE_NULLPTR
-#define nullptr 0L
-#endif
-
 #define COLOR_TITLE COLOR_BROWN
 #define COLOR_UNSELECTED COLOR_GREY
 #define COLOR_SELECTED COLOR_WHITE