diff --git a/bolt/test/CMakeLists.txt b/bolt/test/CMakeLists.txt
index 781a6eb0b663..7c9523de8558 100644
--- a/bolt/test/CMakeLists.txt
+++ b/bolt/test/CMakeLists.txt
@@ -18,6 +18,7 @@ list(APPEND BOLT_TEST_DEPS
   llvm-config
   FileCheck count not
   llvm-bolt
+  llvm-boltdiff
   perf2bolt
   merge-fdata
   llvm-nm
diff --git a/bolt/test/lit.cfg.py b/bolt/test/lit.cfg.py
index 3d66b7bf7919..b5689e7640e6 100644
--- a/bolt/test/lit.cfg.py
+++ b/bolt/test/lit.cfg.py
@@ -69,6 +69,7 @@ tools = [
     ToolSubst('lld', unresolved='fatal'),
     ToolSubst('llvm-dwarfdump', unresolved='fatal'),
     ToolSubst('llvm-bolt', unresolved='fatal'),
+    ToolSubst('llvm-boltdiff', unresolved='fatal'),
     ToolSubst('perf2bolt', unresolved='fatal'),
     ToolSubst('yaml2obj', unresolved='fatal'),
     ToolSubst('llvm-mc', unresolved='fatal'),