diff --git a/H/clause.h b/H/clause.h
index 6ab20dd17..0472868bc 100644
--- a/H/clause.h
+++ b/H/clause.h
@@ -278,6 +278,7 @@ typedef struct dbterm_list {
 wamreg Yap_emit_x(CELL);
 COUNT Yap_compile_cmp_flags(PredEntry *);
 void Yap_InitComma(void);
+yamop *Yap_InitCommaContinuation(PredEntry *);
 
 /* cdmgr.c */
 void Yap_IPred(PredEntry *, UInt, yamop *);