diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
index b9a34958..1ba8a52b 100644
--- a/build/Jamfile.v2
+++ b/build/Jamfile.v2
@@ -97,17 +97,6 @@ alias asm_sources
      <toolset>clang
    ;
 
-alias asm_sources
-   : asm/make_arm64_aapcs_macho_gas.S
-     asm/jump_arm64_aapcs_macho_gas.S
-     asm/ontop_arm64_aapcs_macho_gas.S
-   : <abi>aapcs
-     <address-model>64
-     <architecture>arm
-     <binary-format>mach-o
-     <toolset>gcc
-   ;
-
 alias asm_sources
    : asm/make_arm_aapcs_macho_gas.S
      asm/jump_arm_aapcs_macho_gas.S