diff --git a/src/osgPlugins/txp/trpage_managers.cpp b/src/osgPlugins/txp/trpage_managers.cpp
index 525f65cc7..079a0e832 100644
--- a/src/osgPlugins/txp/trpage_managers.cpp
+++ b/src/osgPlugins/txp/trpage_managers.cpp
@@ -1022,7 +1022,7 @@ void *trpgr_ChildRefCB::Parse(trpgToken tok, trpgReadBuffer& rbuf)
         if(childRef.Read(rbuf))
             return &childRef;
         else
-            return false;
+            return 0;
 
     }
     else
diff --git a/src/osgPlugins/txp/trpage_material.cpp b/src/osgPlugins/txp/trpage_material.cpp
index 2140cfbea..01f0deda2 100644
--- a/src/osgPlugins/txp/trpage_material.cpp
+++ b/src/osgPlugins/txp/trpage_material.cpp
@@ -224,7 +224,7 @@ const trpgMaterial *trpgMatTable::GetMaterialRef(int nt,int nm) const
 {
     MaterialMapType::const_iterator itr = materialMap.find((nt*numMat)+nm);
     if(itr == materialMap.end())
-        return false;
+        return 0;
     return const_cast<trpgMaterial *>(&(*itr).second);
 }
 
@@ -1744,10 +1744,10 @@ bool trpgTexTable::GetTexture(int id,trpgTexture &ret) const
 const trpgTexture *trpgTexTable::GetTextureRef(int id) const
 {
     if (id < 0)
-        return false;
+        return 0;
     TextureMapType::const_iterator itr = textureMap.find(id);
     if(itr == textureMap.end()) {
-        return false;
+        return 0;
     }
     const trpgTexture *ret = &(itr->second);
     return ret;
@@ -1766,7 +1766,7 @@ const trpgTexture *trpgTexTable::FindByName(const char *name, int &texid) const
             return &(itr->second);
         }
     }
-    return false;
+    return 0;
 
 }
 
diff --git a/src/osgPlugins/txp/trpage_model.cpp b/src/osgPlugins/txp/trpage_model.cpp
index acf09a08e..af3d60231 100644
--- a/src/osgPlugins/txp/trpage_model.cpp
+++ b/src/osgPlugins/txp/trpage_model.cpp
@@ -432,7 +432,7 @@ trpgModel *trpgModelTable::GetModelRef(int id)
     //return &models[id];
     ModelMapType::iterator itr = modelsMap.find(id);
     if(itr == modelsMap.end())    {
-        return false;
+        return 0;
     }
     return &(itr->second);
 }