diff --git a/eclass/llvm.org.eclass b/eclass/llvm.org.eclass
index ad7663a1ab67d..180aef8f89a1e 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_pre20250420)
+					EGIT_COMMIT=ac8fc09688e10e983b99224b5dc5cbbeeedb1879
+					;;
 				21.0.0_pre20250415)
 					EGIT_COMMIT=1cf9f764ac41fb3492e10c78640dd50e616388db
 					;;