diff --git a/CMakeLists.txt b/CMakeLists.txt
index aa1f3acdb..aed24a68d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,7 @@ find_package(IndexStoreDB QUIET)
 find_package(SwiftPM QUIET)
 find_package(LLBuild QUIET)
 find_package(ArgumentParser CONFIG REQUIRED)
+find_package(SwiftCollections QUIET)
 
 include(SwiftSupport)