diff --git a/arch/sim/src/nuttx-names.in b/arch/sim/src/nuttx-names.in
index 66b09034ab6..f8306e1d631 100644
--- a/arch/sim/src/nuttx-names.in
+++ b/arch/sim/src/nuttx-names.in
@@ -60,6 +60,7 @@ NXSYMBOLS(open)
 NXSYMBOLS(opendir)
 NXSYMBOLS(perror)
 NXSYMBOLS(poll)
+NXSYMBOLS(posix_memalign)
 NXSYMBOLS(pthread_cond_destroy)
 NXSYMBOLS(pthread_cond_init)
 NXSYMBOLS(pthread_cond_signal)