diff --git a/moses/src/LanguageModel_IRST.cpp b/moses/src/LanguageModel_IRST.cpp
index 8d60d2bbb..f66c7c668 100755
--- a/moses/src/LanguageModel_IRST.cpp
+++ b/moses/src/LanguageModel_IRST.cpp
@@ -68,7 +68,7 @@ void LanguageModel_IRST::Load(size_t id
 	InputFileStream inp(fileName);
 
 	m_lmtb         = new lmtable(
-		inp,
+		fileName.c_str(),
 		nGramOrder,
 		resolution,
 		decay