diff --git a/src/hotspot/share/gc/g1/g1BlockOffsetTable.cpp b/src/hotspot/share/gc/g1/g1BlockOffsetTable.cpp
index a90715a51e4..32979545493 100644
--- a/src/hotspot/share/gc/g1/g1BlockOffsetTable.cpp
+++ b/src/hotspot/share/gc/g1/g1BlockOffsetTable.cpp
@@ -49,12 +49,6 @@ G1BlockOffsetTable::G1BlockOffsetTable(MemRegion heap, G1RegionToSpaceMapper* st
                      p2i(bot_reserved.start()), bot_reserved.byte_size(), p2i(bot_reserved.end()));
 }
 
-bool G1BlockOffsetTable::is_card_boundary(HeapWord* p) const {
-  assert(p >= _reserved.start(), "just checking");
-  size_t delta = pointer_delta(p, _reserved.start());
-  return (delta & right_n_bits((int)BOTConstants::log_card_size_in_words())) == (size_t)NoBits;
-}
-
 #ifdef ASSERT
 void G1BlockOffsetTable::check_index(size_t index, const char* msg) const {
   assert((index) < (_reserved.word_size() >> BOTConstants::log_card_size_in_words()),
diff --git a/src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp b/src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp
index fc9423a1160..966cf472a21 100644
--- a/src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp
+++ b/src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp
@@ -71,8 +71,6 @@ private:
 
   inline void set_offset_array(size_t left, size_t right, u_char offset);
 
-  bool is_card_boundary(HeapWord* p) const;
-
   void check_index(size_t index, const char* msg) const NOT_DEBUG_RETURN;
 
 public: