diff --git a/flang/lib/Frontend/CMakeLists.txt b/flang/lib/Frontend/CMakeLists.txt
index 4a21b136bfe7f..4f54ab7d7ce70 100644
--- a/flang/lib/Frontend/CMakeLists.txt
+++ b/flang/lib/Frontend/CMakeLists.txt
@@ -15,6 +15,7 @@ add_flang_library(flangFrontend
   FIRBuilder
   FIRDialect
   FIRSupport
+  FIROptTransformsPassIncGen
   MLIRIR
   ${dialect_libs}