diff --git a/selfhost/cmd/ww/main.combined.ww b/selfhost/cmd/ww/main.combined.ww
index 9dc35370..72c0c519 100644
--- a/selfhost/cmd/ww/main.combined.ww
+++ b/selfhost/cmd/ww/main.combined.ww
@@ -1205,13 +1205,23 @@ fn dirfilekeep(name: *u8, nlen: u64) bool = {
 		};
 	};
 	if (nlen >= 12u64) {
-		// ".combined.ww"
+		// ".combined.ww" — full 12-char match mirrors cstage
+		// cmd/ww/main.c enumerate_dir_ww strcmp (rule 10); the
+		// trailing .ww is pre-guaranteed by the early-out above.
 		if (name[nlen - 12u64] == 46u8) {	// '.'
 			if (name[nlen - 11u64] == 99u8) {	// 'c'
 				if (name[nlen - 10u64] == 111u8) {	// 'o'
 					if (name[nlen - 9u64] == 109u8) {	// 'm'
 						if (name[nlen - 8u64] == 98u8) {	// 'b'
-							return false;
+							if (name[nlen - 7u64] == 105u8) {	// 'i'
+								if (name[nlen - 6u64] == 110u8) {	// 'n'
+									if (name[nlen - 5u64] == 101u8) {	// 'e'
+										if (name[nlen - 4u64] == 100u8) {	// 'd'
+											return false;
+										};
+									};
+								};
+							};
 						};
 					};
 				};
diff --git a/selfhost/cmd/ww/main.ww b/selfhost/cmd/ww/main.ww
index 4e60d32f..c8b763b7 100644
--- a/selfhost/cmd/ww/main.ww
+++ b/selfhost/cmd/ww/main.ww
@@ -345,13 +345,23 @@ fn dirfilekeep(name: *u8, nlen: u64) bool = {
 		};
 	};
 	if (nlen >= 12u64) {
-		// ".combined.ww"
+		// ".combined.ww" — full 12-char match mirrors cstage
+		// cmd/ww/main.c enumerate_dir_ww strcmp (rule 10); the
+		// trailing .ww is pre-guaranteed by the early-out above.
 		if (name[nlen - 12u64] == 46u8) {	// '.'
 			if (name[nlen - 11u64] == 99u8) {	// 'c'
 				if (name[nlen - 10u64] == 111u8) {	// 'o'
 					if (name[nlen - 9u64] == 109u8) {	// 'm'
 						if (name[nlen - 8u64] == 98u8) {	// 'b'
-							return false;
+							if (name[nlen - 7u64] == 105u8) {	// 'i'
+								if (name[nlen - 6u64] == 110u8) {	// 'n'
+									if (name[nlen - 5u64] == 101u8) {	// 'e'
+										if (name[nlen - 4u64] == 100u8) {	// 'd'
+											return false;
+										};
+									};
+								};
+							};
 						};
 					};
 				};