diff --git a/libs/binder/BufferedTextOutput.cpp b/libs/binder/BufferedTextOutput.cpp
index 1339a67..a2443c0 100644
--- a/libs/binder/BufferedTextOutput.cpp
+++ b/libs/binder/BufferedTextOutput.cpp
@@ -34,7 +34,7 @@
 
 struct BufferedTextOutput::BufferState : public RefBase
 {
-    BufferState(int32_t _seq)
+    explicit BufferState(int32_t _seq)
         : seq(_seq)
         , buffer(NULL)
         , bufferPos(0)
diff --git a/libs/binder/IAppOpsCallback.cpp b/libs/binder/IAppOpsCallback.cpp
index 2aaf566..f9ec593 100644
--- a/libs/binder/IAppOpsCallback.cpp
+++ b/libs/binder/IAppOpsCallback.cpp
@@ -31,7 +31,7 @@
 class BpAppOpsCallback : public BpInterface<IAppOpsCallback>
 {
 public:
-    BpAppOpsCallback(const sp<IBinder>& impl)
+    explicit BpAppOpsCallback(const sp<IBinder>& impl)
         : BpInterface<IAppOpsCallback>(impl)
     {
     }
diff --git a/libs/binder/IAppOpsService.cpp b/libs/binder/IAppOpsService.cpp
index 9558376..638ae5c 100644
--- a/libs/binder/IAppOpsService.cpp
+++ b/libs/binder/IAppOpsService.cpp
@@ -31,7 +31,7 @@
 class BpAppOpsService : public BpInterface<IAppOpsService>
 {
 public:
-    BpAppOpsService(const sp<IBinder>& impl)
+    explicit BpAppOpsService(const sp<IBinder>& impl)
         : BpInterface<IAppOpsService>(impl)
     {
     }
diff --git a/libs/binder/IBatteryStats.cpp b/libs/binder/IBatteryStats.cpp
index e32c628..ad1e69f 100644
--- a/libs/binder/IBatteryStats.cpp
+++ b/libs/binder/IBatteryStats.cpp
@@ -29,7 +29,7 @@
 class BpBatteryStats : public BpInterface<IBatteryStats>
 {
 public:
-    BpBatteryStats(const sp<IBinder>& impl)
+    explicit BpBatteryStats(const sp<IBinder>& impl)
         : BpInterface<IBatteryStats>(impl)
     {
     }
diff --git a/libs/binder/IMemory.cpp b/libs/binder/IMemory.cpp
index e9891a8..f27b882 100644
--- a/libs/binder/IMemory.cpp
+++ b/libs/binder/IMemory.cpp
@@ -74,7 +74,7 @@
 class BpMemoryHeap : public BpInterface<IMemoryHeap>
 {
 public:
-    BpMemoryHeap(const sp<IBinder>& impl);
+    explicit BpMemoryHeap(const sp<IBinder>& impl);
     virtual ~BpMemoryHeap();
 
     virtual int getHeapID() const;
@@ -122,7 +122,7 @@
 class BpMemory : public BpInterface<IMemory>
 {
 public:
-    BpMemory(const sp<IBinder>& impl);
+    explicit BpMemory(const sp<IBinder>& impl);
     virtual ~BpMemory();
     virtual sp<IMemoryHeap> getMemory(ssize_t* offset=0, size_t* size=0) const;
 
diff --git a/libs/binder/IPermissionController.cpp b/libs/binder/IPermissionController.cpp
index 6bba996..674bddf 100644
--- a/libs/binder/IPermissionController.cpp
+++ b/libs/binder/IPermissionController.cpp
@@ -31,7 +31,7 @@
 class BpPermissionController : public BpInterface<IPermissionController>
 {
 public:
-    BpPermissionController(const sp<IBinder>& impl)
+    explicit BpPermissionController(const sp<IBinder>& impl)
         : BpInterface<IPermissionController>(impl)
     {
     }
diff --git a/libs/binder/IProcessInfoService.cpp b/libs/binder/IProcessInfoService.cpp
index d86eb27..794588b 100644
--- a/libs/binder/IProcessInfoService.cpp
+++ b/libs/binder/IProcessInfoService.cpp
@@ -25,7 +25,7 @@
 
 class BpProcessInfoService : public BpInterface<IProcessInfoService> {
 public:
-    BpProcessInfoService(const sp<IBinder>& impl)
+    explicit BpProcessInfoService(const sp<IBinder>& impl)
         : BpInterface<IProcessInfoService>(impl) {}
 
     virtual status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids,
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 725ebdf..2062b3b 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -126,7 +126,7 @@
 class BpServiceManager : public BpInterface<IServiceManager>
 {
 public:
-    BpServiceManager(const sp<IBinder>& impl)
+    explicit BpServiceManager(const sp<IBinder>& impl)
         : BpInterface<IServiceManager>(impl)
     {
     }
diff --git a/libs/binder/MemoryDealer.cpp b/libs/binder/MemoryDealer.cpp
index 8739625..a5ba4ac 100644
--- a/libs/binder/MemoryDealer.cpp
+++ b/libs/binder/MemoryDealer.cpp
@@ -126,7 +126,7 @@
         PAGE_ALIGNED = 0x00000001
     };
 public:
-    SimpleBestFitAllocator(size_t size);
+    explicit SimpleBestFitAllocator(size_t size);
     ~SimpleBestFitAllocator();
 
     size_t      allocate(size_t size, uint32_t flags = 0);
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 5114ac1..4748979 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -52,7 +52,7 @@
 class PoolThread : public Thread
 {
 public:
-    PoolThread(bool isMain)
+    explicit PoolThread(bool isMain)
         : mIsMain(isMain)
     {
     }
diff --git a/libs/binder/Static.cpp b/libs/binder/Static.cpp
index cd9509f..f0613d1 100644
--- a/libs/binder/Static.cpp
+++ b/libs/binder/Static.cpp
@@ -48,7 +48,7 @@
 class FdTextOutput : public BufferedTextOutput
 {
 public:
-    FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
+    explicit FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
     virtual ~FdTextOutput() { };
 
 protected: