diff --git a/security/manager/ssl/src/nsNSSComponent.cpp b/security/manager/ssl/src/nsNSSComponent.cpp
index 46a81805f39c..f37ea7331a01 100644
--- a/security/manager/ssl/src/nsNSSComponent.cpp
+++ b/security/manager/ssl/src/nsNSSComponent.cpp
@@ -1667,7 +1667,7 @@ nsNSSComponent::InitializeNSS(bool showWarningBox)
     cfmSecurityPath->AppendNative(NS_LITERAL_CSTRING("Security"));
   #endif
 
-  #ifdef defined(XP_MACOSX)
+  #if defined(XP_MACOSX)
     // On MachO, we need to access both directories,
     // and therefore need separate nsIFile instances.
     // Keep cfmSecurityPath instance, obtain new instance for MachO profilePath.