Index: simd/x86_64/jquanti-sse2.asm
--- simd/x86_64/jquanti-sse2.asm.orig
+++ simd/x86_64/jquanti-sse2.asm
@@ -37,6 +37,7 @@
     GLOBAL_FUNCTION(jsimd_convsamp_sse2)
 
 EXTN(jsimd_convsamp_sse2):
+    _endbr64
     push        rbp
     mov         rbp, rsp
     collect_args 3
@@ -115,6 +116,7 @@ EXTN(jsimd_convsamp_sse2):
     GLOBAL_FUNCTION(jsimd_quantize_sse2)
 
 EXTN(jsimd_quantize_sse2):
+    _endbr64
     push        rbp
     mov         rbp, rsp
     collect_args 3
