--- icu4c/source/i18n/BUILD.bazel
+++ icu4c/source/i18n/BUILD.bazel
@@ -38,36 +38,10 @@ cc_library(
 
 cc_library(
     name = "collation",
-    srcs = [
-        "bocsu.cpp",
-        "coleitr.cpp",
-        "coll.cpp",
-        "collation.cpp",
-        "collationcompare.cpp",
-        "collationdata.cpp",
-        "collationdatareader.cpp",
-        "collationdatawriter.cpp",
-        "collationfastlatin.cpp",
-        # collationfcd.cpp is generated by genuca;
-        # probably hard to build genuca without depending on the old version.
-        "collationfcd.cpp",
-        "collationiterator.cpp",
-        "collationkeys.cpp",
-        "collationroot.cpp",
-        "collationrootelements.cpp",
-        "collationsets.cpp",
-        "collationsettings.cpp",
-        "collationtailoring.cpp",
-        "rulebasedcollator.cpp",
-        "sortkey.cpp",
-        "ucol.cpp",
-        "ucol_res.cpp",
-        "ucol_sit.cpp",
-        "ucoleitr.cpp",
-        "uitercollationiterator.cpp",
-        "utf16collationiterator.cpp",
-        "utf8collationiterator.cpp",
-    ],
+    srcs = glob([
+        "*.h",
+        "*.cpp",
+    ]),
     includes = ["."],
     deps = [
         ":headers",