diff --git a/arch/sim/src/nuttx-names.in b/arch/sim/src/nuttx-names.in
index 2c2d559980..ec12f28a6e 100644
--- a/arch/sim/src/nuttx-names.in
+++ b/arch/sim/src/nuttx-names.in
@@ -44,6 +44,7 @@ NXSYMBOLS(ftruncate)
 NXSYMBOLS(if_nametoindex)
 NXSYMBOLS(ioctl)
 NXSYMBOLS(lseek)
+NXSYMBOLS(malloc)
 NXSYMBOLS(mkdir)
 NXSYMBOLS(mmap)
 NXSYMBOLS(munmap)