diff --git a/libutils/ProcessCallStack.cpp b/libutils/ProcessCallStack.cpp
index ed35237..e202b9c 100644
--- a/libutils/ProcessCallStack.cpp
+++ b/libutils/ProcessCallStack.cpp
@@ -26,6 +26,8 @@
 #include <utils/ProcessCallStack.h>
 #include <utils/Printer.h>
 
+#include <limits.h>
+
 namespace android {
 
 enum {