diff --git a/src/mongo/db/dur.cpp b/src/mongo/db/dur.cpp
index 822fa5232c0c3..297f89a38c8c9 100644
--- a/src/mongo/db/dur.cpp
+++ b/src/mongo/db/dur.cpp
@@ -166,10 +166,19 @@ namespace mongo {
             }
         }
 
+        void* NonDurableImpl::writingPtr(void *x, unsigned len) { 
+            cc().writeHappened();
+            return x; 
+        }
+
         void NonDurableImpl::setNoJournal(void *dst, void *src, unsigned len) {
             memcpy(dst, src, len);
         }
 
+        void NonDurableImpl::declareWriteIntent(void *, unsigned) { 
+            cc().writeHappened(); 
+        }
+
         void DurableImpl::setNoJournal(void *dst, void *src, unsigned len) {
             // we are at least read locked, so we need not worry about REMAPPRIVATEVIEW herein.
             DEV d.dbMutex.assertAtLeastReadLocked();
diff --git a/src/mongo/db/dur.h b/src/mongo/db/dur.h
index f06ff500195f3..2d6fcdcf1e72d 100644
--- a/src/mongo/db/dur.h
+++ b/src/mongo/db/dur.h
@@ -172,10 +172,10 @@ namespace mongo {
         }; // class DurableInterface
 
         class NonDurableImpl : public DurableInterface {
-            void* writingPtr(void *x, unsigned len) { return x; }
+            void* writingPtr(void *x, unsigned len);
             void* writingAtOffset(void *buf, unsigned ofs, unsigned len) { return buf; }
             void* writingRangesAtOffsets(void *buf, const vector< pair< long long, unsigned > > &ranges) { return buf; }
-            void declareWriteIntent(void *, unsigned) { }
+            void declareWriteIntent(void *, unsigned);
             void createdFile(string filename, unsigned long long len) { }
             bool awaitCommit() { return false; }
             bool commitNow() { return false; }