diff --git a/libaudiofile/modules/SimpleModule.cpp b/libaudiofile/modules/SimpleModule.cpp
index 2bae1eb..d933eeb 100644
--- a/libaudiofile/modules/SimpleModule.cpp
+++ b/libaudiofile/modules/SimpleModule.cpp
@@ -26,6 +26,7 @@
 void SimpleModule::runPull()
 {
 	pull(m_outChunk->frameCount);
+    m_outChunk->frameCount = m_inChunk->frameCount;
 	run(*m_inChunk, *m_outChunk);
 }