diff --git a/.clang-tidy b/.clang-tidy
index 0f0dc3fd2..a3daf4dd2 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,5 +1,5 @@
 ---
-Checks:          'clang-diagnostic-*,clang-analyzer-*,cert-*,performance-*,portability-*,modernize-use-auto,modernize-loop-convert'
+Checks:          'clang-diagnostic-*,clang-analyzer-*,cert-*,performance-*,portability-*,modernize-use-auto,modernize-loop-convert,modernize-use-bool-literals'
 WarningsAsErrors: ''
 HeaderFilterRegex: ''
 AnalyzeTemporaryDtors: false
diff --git a/src/proc.cpp b/src/proc.cpp
index a050e9e66..d19d08056 100644
--- a/src/proc.cpp
+++ b/src/proc.cpp
@@ -428,7 +428,7 @@ static void process_mark_finished_children(parser_t &parser, bool block_ok) {
                             assert(pid == proc->pid && "Unexpcted waitpid() return");
                             handle_child_status(proc.get(), proc_status_t::from_waitpid(status));
                             if (proc->status.stopped()) {
-                                j->mut_flags().foreground = 0;
+                                j->mut_flags().foreground = false;
                             }
                             if (proc->status.normal_exited() || proc->status.signal_exited()) {
                                 FLOGF(proc_reap_external,