Avoid requiring a system header here

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/entropy/unix_procs/unix_procs.h b/src/lib/entropy/unix_procs/unix_procs.h
index b2505fcd5..eb798b207 100644
--- a/src/lib/entropy/unix_procs/unix_procs.h
+++ b/src/lib/entropy/unix_procs/unix_procs.h
@@ -62,7 +62,7 @@ class Unix_EntropySource : public EntropySource
             Unix_Process& operator=(const Unix_Process&) = delete;
          private:
             int m_fd = -1;
-            pid_t m_pid = -1;
+            int m_pid = -1;
          };
 
       const std::vector<std::string>& next_source();