diff --git a/src/inet/tests/TestInetCommonOptions.cpp b/src/inet/tests/TestInetCommonOptions.cpp
index fc9c8df..fdc79b1 100644
--- a/src/inet/tests/TestInetCommonOptions.cpp
+++ b/src/inet/tests/TestInetCommonOptions.cpp
@@ -243,6 +243,7 @@
     ExtraCleanupTimeMsec = 0;
 }
 
+#if defined(CHIP_WITH_NLFAULTINJECTION) && CHIP_WITH_NLFAULTINJECTION
 bool FaultInjectionOptions::HandleOption(const char * progName, OptionSet * optSet, int id, const char * name, const char * arg)
 {
     using namespace nl::FaultInjection;
@@ -292,3 +293,4 @@
 
     return true;
 }
+#endif // defined(CHIP_WITH_NLFAULTINJECTION) && CHIP_WITH_NLFAULTINJECTION