diff --git a/arch/sim/src/nuttx-names.in b/arch/sim/src/nuttx-names.in
index 1dcbbacd47..e0dded9e45 100644
--- a/arch/sim/src/nuttx-names.in
+++ b/arch/sim/src/nuttx-names.in
@@ -90,6 +90,7 @@ NXSYMBOLS(munmap)
 NXSYMBOLS(open)
 NXSYMBOLS(opendir)
 NXSYMBOLS(pclose)
+NXSYMBOLS(pipe2)
 NXSYMBOLS(perror)
 NXSYMBOLS(poll)
 NXSYMBOLS(popen)