diff --git a/libutils/ProcessCallStack.cpp b/libutils/ProcessCallStack.cpp
index ff8b32a..b8fb6dc 100644
--- a/libutils/ProcessCallStack.cpp
+++ b/libutils/ProcessCallStack.cpp
@@ -20,6 +20,8 @@
 #include <utils/ProcessCallStack.h>
 
 #include <dirent.h>
+#include <unistd.h>
+
 #include <memory>
 
 #include <utils/Printer.h>
diff --git a/libutils/misc.cpp b/libutils/misc.cpp
index 2608a65..ab72fe6 100644
--- a/libutils/misc.cpp
+++ b/libutils/misc.cpp
@@ -16,15 +16,11 @@
 
 #define LOG_TAG "misc"
 
-//
-// Miscellaneous utility functions.
-//
 #include <utils/misc.h>
+
+#include <pthread.h>
+
 #include <utils/Log.h>
-
-#if !defined(_WIN32)
-#endif
-
 #include <utils/Vector.h>
 
 using namespace android;