diff --git a/src/spicelib/parser/inp2q.c b/src/spicelib/parser/inp2q.c
index 76d6e7be3..2ee710d51 100644
--- a/src/spicelib/parser/inp2q.c
+++ b/src/spicelib/parser/inp2q.c
@@ -11,6 +11,10 @@ Modified: 2001 Paolo Nenzi (Cider Integration)
 #include "fteext.h"
 #include "inp.h"
 
+#ifdef ADMS
+#include "error.h" /* controlled_exit() */
+#endif
+
 void INP2Q(CKTcircuit *ckt, INPtables * tab, card * current, void *gnode)
 {