diff --git a/etc/config/hlsl.amazon.properties b/etc/config/hlsl.amazon.properties
index 1ee53d8f8..d5ffdf541 100644
--- a/etc/config/hlsl.amazon.properties
+++ b/etc/config/hlsl.amazon.properties
@@ -71,7 +71,7 @@ compiler.rga290_dxctrunk.semver=2.9.0
 compiler.rga290_dxctrunk.dxcPath=/opt/compiler-explorer/dxc-trunk/bin/dxc
 compiler.rga290_dxctrunk.name=RGA 2.9.0 (DXC trunk)
 
-group.clang.compilers=hlsl_clang_trunk
+group.clang.compilers=hlsl_clang_trunk:hlsl_clang_assertions_trunk
 group.clang.groupName=Clang
 group.clang.baseName=Clang
 group.clang.isSemVer=true
@@ -81,6 +81,10 @@ compiler.hlsl_clang_trunk.exe=/opt/compiler-explorer/clang-trunk/bin/clang
 compiler.hlsl_clang_trunk.semver=(trunk)
 compiler.hlsl_clang_trunk.isNightly=true
 
+compiler.hlsl_clang_assertions_trunk.exe=/opt/compiler-explorer/clang-assertions-trunk/bin/clang
+compiler.hlsl_clang_assertions_trunk.semver=(assertions trunk)
+compiler.hlsl_clang_assertions_trunk.isNightly=true
+
 supportsBinary=false
 defaultCompiler=dxc_1_8_2403_2
 compilerType=hlsl