Index: simd/x86_64/jfdctflt-sse.asm
--- simd/x86_64/jfdctflt-sse.asm.orig
+++ simd/x86_64/jfdctflt-sse.asm
@@ -66,6 +66,7 @@ PD_1_306 times 4 dd 1.306562964876376527856643
     GLOBAL_FUNCTION(jsimd_fdct_float_sse)
 
 EXTN(jsimd_fdct_float_sse):
+    _endbr64
     push        rbp
     mov         rbp, rsp
     push        r15
