diff --git a/src/processManager.cpp b/src/processManager.cpp
index f6413d5..653b87b 100644
--- a/src/processManager.cpp
+++ b/src/processManager.cpp
@@ -57,7 +57,7 @@ int PipeManager::Close()
 bool PipeManager::GetLine(std::string &line)
 {
     line = "";
-    char letter = '\0';
+    int letter = '\0';
 
     while(not feof(m_pipe))
     {