diff --git a/boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp b/boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp
index a043e02918b..56ed79fa97f 100644
--- a/boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp
+++ b/boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp
@@ -30,7 +30,7 @@ namespace detail
 
 inline uint32_t compare_and_swap( uint32_t * dest_, uint32_t compare_, uint32_t swap_ )
 {
-	return __builtin_cellAtomicCompareAndSwap32(dest_,compare_,swap_);
+    return __builtin_cellAtomicCompareAndSwap32(dest_,compare_,swap_);
 }
 
 inline uint32_t atomic_fetch_and_add( uint32_t * pw, uint32_t dv )
diff --git a/boost/smart_ptr/shared_ptr.hpp b/boost/smart_ptr/shared_ptr.hpp
index 2d903a37601..b34b0ac5828 100644
--- a/boost/smart_ptr/shared_ptr.hpp
+++ b/boost/smart_ptr/shared_ptr.hpp
@@ -910,12 +910,12 @@ class esft2_deleter_wrapper
         deleter_ = deleter;
     }
 
-	template<typename D> D* get_deleter() const BOOST_NOEXCEPT
+    template<typename D> D* get_deleter() const BOOST_NOEXCEPT
     {
         return boost::detail::basic_get_deleter<D>( deleter_ );
     }
 
-	template< class T> void operator()( T* )
+    template< class T> void operator()( T* )
     {
         BOOST_ASSERT( deleter_.use_count() <= 1 );
         deleter_.reset();
@@ -928,7 +928,7 @@ template<class D, class T> D * get_deleter( shared_ptr<T> const & p ) BOOST_NOEX
 {
     D *del = boost::detail::basic_get_deleter<D>(p);
 
-	if(del == 0)
+    if(del == 0)
     {
         boost::detail::esft2_deleter_wrapper *del_wrapper = boost::detail::basic_get_deleter<boost::detail::esft2_deleter_wrapper>(p);
 // The following get_deleter method call is fully qualified because
@@ -936,7 +936,7 @@ template<class D, class T> D * get_deleter( shared_ptr<T> const & p ) BOOST_NOEX
         if(del_wrapper) del = del_wrapper->::boost::detail::esft2_deleter_wrapper::get_deleter<D>();
     }
 
-	return del;
+    return del;
 }
 
 // atomic access
diff --git a/libs/smart_ptr/test/array_fail_upa_sp_a.cpp b/libs/smart_ptr/test/array_fail_upa_sp_a.cpp
index b44e07ee6a2..4d87fdd478f 100644
--- a/libs/smart_ptr/test/array_fail_upa_sp_a.cpp
+++ b/libs/smart_ptr/test/array_fail_upa_sp_a.cpp
@@ -15,6 +15,6 @@ struct X
 
 int main()
 {
-	std::unique_ptr<X[]> px;
+    std::unique_ptr<X[]> px;
     boost::shared_ptr<X> px2; px2 = px;
 }
diff --git a/libs/smart_ptr/test/array_fail_upa_sp_c.cpp b/libs/smart_ptr/test/array_fail_upa_sp_c.cpp
index fe620440166..259fda05018 100644
--- a/libs/smart_ptr/test/array_fail_upa_sp_c.cpp
+++ b/libs/smart_ptr/test/array_fail_upa_sp_c.cpp
@@ -15,6 +15,6 @@ struct X
 
 int main()
 {
-	std::unique_ptr<X[]> px;
+    std::unique_ptr<X[]> px;
     boost::shared_ptr<X> px2( px );
 }