diff --git a/arch/sim/src/nuttx-names.in b/arch/sim/src/nuttx-names.in
index 42cee0bf7d..85aa089693 100644
--- a/arch/sim/src/nuttx-names.in
+++ b/arch/sim/src/nuttx-names.in
@@ -31,6 +31,7 @@
 #endif
 
 NXSYMBOLS(__cxa_atexit)
+NXSYMBOLS(atexit)
 NXSYMBOLS(bind)
 NXSYMBOLS(calloc)
 NXSYMBOLS(clock_gettime)