diff --git a/src/detection/version/version.c b/src/detection/version/version.c
index 1f1deb348..a979bde5f 100644
--- a/src/detection/version/version.c
+++ b/src/detection/version/version.c
@@ -40,6 +40,8 @@
     #define FF_SYSNAME "SunOS"
 #elif defined(__OpenBSD__)
     #define FF_SYSNAME "OpenBSD"
+#elif defined(__NetBSD__)
+    #define FF_SYSNAME "NetBSD"
 #else
     #define FF_SYSNAME "unknown"
 #endif