diff --git a/modules/gmt/modgmt_gsfuncs.h b/modules/gmt/modgmt_gsfuncs.h
index 412f20f..e1231a9 100644
--- a/modules/gmt/modgmt_gsfuncs.h
+++ b/modules/gmt/modgmt_gsfuncs.h
@@ -4,6 +4,10 @@
 #include <ghostscript/iapi.h>
 #include <ghostscript/ierrors.h>
 
+#ifndef e_Quit
+#define e_Quit (-101)
+#endif
+
 struct gs_abilities_struct
 {
  bool havepngmono,havepngmonod,havepng16,havepng256,havepnggray,havepng16m;