diff --git a/arch/sim/src/nuttx-names.in b/arch/sim/src/nuttx-names.in
index 9e30d90ace..d59e436d71 100644
--- a/arch/sim/src/nuttx-names.in
+++ b/arch/sim/src/nuttx-names.in
@@ -38,6 +38,7 @@ NXSYMBOLS(clock_gettime)
 NXSYMBOLS(close)
 NXSYMBOLS(closedir)
 NXSYMBOLS(connect)
+NXSYMBOLS(dlsym)
 NXSYMBOLS(dup)
 NXSYMBOLS(exit)
 NXSYMBOLS(free)