diff --git a/include/binder/IPCThreadState.h b/include/binder/IPCThreadState.h
index b29c266..60c2242 100644
--- a/include/binder/IPCThreadState.h
+++ b/include/binder/IPCThreadState.h
@@ -39,8 +39,8 @@
             
             status_t            clearLastError();
 
-            int                 getCallingPid() const;
-            int                 getCallingUid() const;
+            pid_t               getCallingPid() const;
+            uid_t               getCallingUid() const;
 
             void                setStrictModePolicy(int32_t policy);
             int32_t             getStrictModePolicy() const;
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 8633691..2043d54 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -350,12 +350,12 @@
     return err;
 }
 
-int IPCThreadState::getCallingPid() const
+pid_t IPCThreadState::getCallingPid() const
 {
     return mCallingPid;
 }
 
-int IPCThreadState::getCallingUid() const
+uid_t IPCThreadState::getCallingUid() const
 {
     return mCallingUid;
 }