diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 2baf474f3..ef88181d6 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -403,8 +403,9 @@ void IPCThreadState::blockUntilThreadAvailable()
 {
     pthread_mutex_lock(&mProcess->mThreadCountLock);
     while (mProcess->mExecutingThreadsCount >= mProcess->mMaxThreads) {
-        ALOGW("Waiting for thread to be free. mExecutingThreadsCount=%i mMaxThreads=%i\n",
-                mProcess->mExecutingThreadsCount, mProcess->mMaxThreads);
+        ALOGW("Waiting for thread to be free. mExecutingThreadsCount=%lu mMaxThreads=%lu\n",
+                static_cast<unsigned long>(mProcess->mExecutingThreadsCount),
+                static_cast<unsigned long>(mProcess->mMaxThreads));
         pthread_cond_wait(&mProcess->mThreadCountDecrement, &mProcess->mThreadCountLock);
     }
     pthread_mutex_unlock(&mProcess->mThreadCountLock);