diff --git a/include/osg/PagedLOD b/include/osg/PagedLOD
index 1b6e2c37d..6d57d74e9 100644
--- a/include/osg/PagedLOD
+++ b/include/osg/PagedLOD
@@ -46,26 +46,9 @@ class SG_EXPORT PagedLOD : public LOD
         
         struct PerRangeData
         {
-            PerRangeData():
-                _priorityOffset(0.0f),
-                _priorityScale(0.0f),
-                _timeStamp(0.0f) {}
-        
-            PerRangeData(const PerRangeData& prd):
-                _filename(prd._filename),
-                _priorityOffset(prd._priorityOffset),
-                _priorityScale(prd._priorityScale),
-                _timeStamp(prd._timeStamp) {}
-
-            PerRangeData& operator = (const PerRangeData& prd)
-            {
-                if (this==&prd) return *this;
-                _filename = prd._filename;
-                _priorityOffset = prd._priorityOffset;
-                _priorityScale = prd._priorityScale;
-                _timeStamp = prd._timeStamp;
-            }
-
+            PerRangeData();
+            PerRangeData(const PerRangeData& prd);
+            PerRangeData& operator = (const PerRangeData& prd);
 
             std::string _filename;
             float       _priorityOffset;
diff --git a/src/osg/PagedLOD.cpp b/src/osg/PagedLOD.cpp
index b26a8810a..3c15902fd 100644
--- a/src/osg/PagedLOD.cpp
+++ b/src/osg/PagedLOD.cpp
@@ -2,6 +2,27 @@
 
 using namespace osg;
 
+PagedLOD::PerRangeData::PerRangeData():
+    _priorityOffset(0.0f),
+    _priorityScale(0.0f),
+    _timeStamp(0.0f) {}
+
+PagedLOD::PerRangeData::PerRangeData(const PerRangeData& prd):
+    _filename(prd._filename),
+    _priorityOffset(prd._priorityOffset),
+    _priorityScale(prd._priorityScale),
+    _timeStamp(prd._timeStamp) {}
+
+PagedLOD::PerRangeData& PagedLOD::PerRangeData::operator = (const PerRangeData& prd)
+{
+    if (this==&prd) return *this;
+    _filename = prd._filename;
+    _priorityOffset = prd._priorityOffset;
+    _priorityScale = prd._priorityScale;
+    _timeStamp = prd._timeStamp;
+    return *this;
+}
+
 PagedLOD::PagedLOD()
 {
     _centerMode = USER_DEFINED_CENTER;