diff --git a/mozilla/security/nss/lib/freebl/Makefile b/mozilla/security/nss/lib/freebl/Makefile
index 426507ee9d7..27848ce2530 100644
--- a/mozilla/security/nss/lib/freebl/Makefile
+++ b/mozilla/security/nss/lib/freebl/Makefile
@@ -149,7 +149,7 @@ endif
 ifeq ($(OS_TARGET),Linux)
 ifeq ($(CPU_ARCH),x86_64)
     ASFILES  = arcfour-amd64-gas.s mpi_amd64_gas.s
-    ASFLAGS += -march=opteron -m64 -fPIC
+    ASFLAGS += -march=opteron -m64 -fPIC -Wa,--noexecstack
     DEFINES += -DNSS_BEVAND_ARCFOUR -DMPI_AMD64 -DMP_ASSEMBLY_MULTIPLY
     DEFINES += -DNSS_USE_COMBA
     DEFINES += -DMP_CHAR_STORE_SLOW -DMP_IS_LITTLE_ENDIAN