diff --git a/src/WINNT/afsrdr/kernel/lib/AFSExtentsSupport.cpp b/src/WINNT/afsrdr/kernel/lib/AFSExtentsSupport.cpp
index 2882409a1c..f2b41c56b3 100644
--- a/src/WINNT/afsrdr/kernel/lib/AFSExtentsSupport.cpp
+++ b/src/WINNT/afsrdr/kernel/lib/AFSExtentsSupport.cpp
@@ -61,7 +61,7 @@ AFSLockForExtentsTrim( IN AFSFcb *Fcb)
 
     AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
                   AFS_TRACE_LEVEL_VERBOSE,
-                  "AFSLockForExtentsTrim Acuiring Fcb extents lock %08lX EXCL %08lX\n",
+                  "AFSLockForExtentsTrim Acquiring Fcb extents lock %08lX EXCL %08lX\n",
                   &pNPFcb->Specific.File.ExtentsResource,
                   PsGetCurrentThread());
 
@@ -80,7 +80,7 @@ AFSLockForExtentsTrimNoWait( IN AFSFcb *Fcb)
 
     AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
                   AFS_TRACE_LEVEL_VERBOSE,
-                  "AFSLockForExtentsTrimNoWait Attempting to acquiring Fcb extent lock %08lX EXCL %08lX\n",
+                  "AFSLockForExtentsTrimNoWait Attempting to acquire Fcb extent lock %08lX EXCL %08lX\n",
                   &pNPFcb->Specific.File.ExtentsResource,
                   PsGetCurrentThread());
 
diff --git a/src/WINNT/afsrdr/kernel/lib/AFSGeneric.cpp b/src/WINNT/afsrdr/kernel/lib/AFSGeneric.cpp
index dfd8968e10..c7c90d7057 100644
--- a/src/WINNT/afsrdr/kernel/lib/AFSGeneric.cpp
+++ b/src/WINNT/afsrdr/kernel/lib/AFSGeneric.cpp
@@ -8579,7 +8579,14 @@ AFSPerformObjectInvalidate( IN AFSObjectInfoCB *ObjectInfo,
                     AFSAcquireExcl( &ObjectInfo->Fcb->NPFcb->Resource,
                                     TRUE);
 
-                    AFSLockForExtentsTrim( ObjectInfo->Fcb);
+                    AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
+                                  AFS_TRACE_LEVEL_VERBOSE,
+                                  "AFSPerformObjectInvalidate Acquiring Fcb extents lock %08lX EXCL %08lX\n",
+                                  &ObjectInfo->Fcb->NPFcb->Specific.File.ExtentsResource,
+                                  PsGetCurrentThread());
+
+                    AFSAcquireShared( &ObjectInfo->Fcb->NPFcb->Specific.File.ExtentsResource,
+                                      TRUE);
 
                     __try
                     {