diff -Naur a/security/sandbox/linux/moz.build b/security/sandbox/linux/moz.build
--- a/security/sandbox/linux/moz.build	2017-11-02 23:16:32.000000000 +0700
+++ b/security/sandbox/linux/moz.build	2018-01-14 13:41:47.555355330 +0700
@@ -97,7 +97,7 @@
 # from the function using it which breaks the build.  Work around that by
 # forcing there to be only one partition.
 if '-flto' in CONFIG['OS_CXXFLAGS'] and not CONFIG['CLANG_CXX']:
-    LDFLAGS += ['--param lto-partitions=1']
+    LDFLAGS += ['--param=lto-partitions=1']
 
 DEFINES['NS_NO_XPCOM'] = True
 DisableStlWrapping()