diff --git a/mozilla/build/mac/build_scripts/MozillaBuildList.pm b/mozilla/build/mac/build_scripts/MozillaBuildList.pm
index a0981bdc671..b105bca074b 100644
--- a/mozilla/build/mac/build_scripts/MozillaBuildList.pm
+++ b/mozilla/build/mac/build_scripts/MozillaBuildList.pm
@@ -1245,6 +1245,10 @@ sub BuildRuntimeProjects()
 
     BuildOneProjectWithOutput(":mozilla:lib:mac:NSStdLib:NSStdLib.mcp", "NSStdLib$C$D.shlb", "NSStdLib$D.shlb", 1, $main::ALIAS_SYM_FILES, 0);
 
+    if ($main::DEBUG && $main::options{carbon}) {
+        BuildOneProject(":mozilla:lib:mac:NSStdLib:NSConsole.mcp", "NSConsoleDebug.shlb", 1, $main::ALIAS_SYM_FILES, 0);
+    }
+
 	BuildOneProjectWithOutput(":mozilla:nsprpub:macbuild:NSPR20PPC.mcp", "NSPR20$C$D.shlb", "NSPR20$D.shlb", 1, $main::ALIAS_SYM_FILES, 0);
 
     EndBuildModule("runtime");
diff --git a/mozilla/lib/mac/NSStdLib/NSStdLib.mcp b/mozilla/lib/mac/NSStdLib/NSStdLib.mcp
index 6f52b3a3c52..77d0a387bfe 100644
Binary files a/mozilla/lib/mac/NSStdLib/NSStdLib.mcp and b/mozilla/lib/mac/NSStdLib/NSStdLib.mcp differ