diff --git a/eclass/llvm.org.eclass b/eclass/llvm.org.eclass
index 28fa6d6d1024c..f835b0d2dc0d3 100644
--- a/eclass/llvm.org.eclass
+++ b/eclass/llvm.org.eclass
@@ -72,6 +72,9 @@ if [[ -z ${_LLVM_SOURCE_TYPE+1} ]]; then
 			_LLVM_SOURCE_TYPE=snapshot
 
 			case ${PV} in
+				21.0.0_pre20250628)
+					EGIT_COMMIT=e34e02128ec5eb89e36a8f0f7307dcbcfecabbee
+					;;
 				21.0.0_pre20250614)
 					EGIT_COMMIT=814ac2e3735e52c1162ac495c24158e0ac256520
 					;;