diff --git a/arch/sim/src/nuttx-names.dat b/arch/sim/src/nuttx-names.dat
index b04b716a03c..d8748461a7d 100644
--- a/arch/sim/src/nuttx-names.dat
+++ b/arch/sim/src/nuttx-names.dat
@@ -146,6 +146,7 @@ strncmp        NXstrncmp
 strncpy        NXstrncpy
 strnlen        NXstrnlen
 strrchr        NXstrrchr
+strstr         NXstrstr
 strtok_r       NXstrtok_r
 strtol         NXstrtol
 strtoul        NXstrtoul