diff --git a/header/libShaderFile.hpp b/header/libShaderFile.hpp
index 57534d1..a783377 100644
--- a/header/libShaderFile.hpp
+++ b/header/libShaderFile.hpp
@@ -41,6 +41,7 @@ namespace lsf
         errNotInit                      = 0x00000001,
         errInvalidHandleShaderFile      = 0x00000010,
         errInvalidHandleShaderGenerator = 0x00000011,
+        errInvalidHandleStream          = 0x00000012,
         errInvalidGeneratorName         = 0x00000020,
         errInvalidPropertyIndex         = 0x00000021,
         errInvalidPropertyName          = 0x00000022,