diff --git a/src/PAST/NQP.pir b/src/PAST/NQP.pir
index 143a7d3065..1202256459 100644
--- a/src/PAST/NQP.pir
+++ b/src/PAST/NQP.pir
@@ -475,6 +475,7 @@ entry to produce the node to be returned.
     maphash['substr']   = 'substr__Ssii'
     maphash['x']        = 'repeat__Ssi'
     maphash['iscclass'] = 'is_cclass__Iisi'
+    maphash['sprintf']  = 'sprintf__SsP'
 
     # relational opcodes
     maphash['cmp_i']    = 'cmp__Iii'