diff --git a/crypto/perlasm/x86asm.pl b/crypto/perlasm/x86asm.pl
index be462cec6e..2ec16c5571 100644
--- a/crypto/perlasm/x86asm.pl
+++ b/crypto/perlasm/x86asm.pl
@@ -174,7 +174,9 @@ sub ::vprotd
 
 sub ::endbranch
 {
+    &::generic("#ifdef __CET__\n");
     &::data_byte(0xf3,0x0f,0x1e,0xfb);
+    &::generic("#endif\n");
 }
 
 # label management