diff --git a/src/Stk.cpp b/src/Stk.cpp
index ed2fe93..7b35795 100644
--- a/src/Stk.cpp
+++ b/src/Stk.cpp
@@ -313,7 +313,7 @@ void StkFrames :: resize( size_t nFrames, unsigned int nChannels )
       std::string error = "StkFrames::resize: memory allocation error!";
       Stk::handleError( error, StkError::MEMORY_ALLOCATION );
     }
-    if ( ownData ) {
+    if ( ownData_ ) {
       Stk::handleError( "Pointer to external data was lost after resize", StkError::WARNING );
     }
 #endif