diff --git a/DESCRIPTION b/DESCRIPTION
index 8321a8503b8cab429e4a5d868adcd58d0430fd43..7b8e05125114dc8ca0461420eb9cb8674ef37cf2 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,12 +1,12 @@
 Package: sybilGUROBI
 Type: Package
 Title: Gurobi support for sybil
-Version: 1.0.4
-Date: 2013-07-23
+Version: 1.0.5
+Date: 2015-11-16
 Authors@R: c(person("Gabriel", "Gelius-Dietrich", role = c("aut", "cre"), email = "geliudie@uni-duesseldorf.de"))
 Depends: R (>= 2.14.2), sybil (>= 1.2.2), gurobi, Matrix, methods
 Description: Gurobi support for sybil
 License: GPL-3
-Packaged: 2013-07-23 14:16:44 UTC; gabriel
+Packaged: 2015-11-16 11:00:00 UTC; jonathan
 Author: Gabriel Gelius-Dietrich [aut, cre]
 Maintainer: Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>
diff --git a/NAMESPACE b/NAMESPACE
index 9ec36d732677d97fb67344907a0c87860272cafc..fb234e81d0be7e170fd14d6716fa533c889aa8d7 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,5 +1,7 @@
 import(gurobi)
 importFrom("sybil", optObj)
+import(methods)
+import(Matrix)
 
 exportClass("optObj_sybilGUROBI")
 
diff --git a/R/optObj_sybilGUROBIClass.R b/R/optObj_sybilGUROBIClass.R
index 1be1a017fce6d3cec31665ece132b9ca7ef93acb..0a572b2ad1d3fd09cb54a5e1bce7cf2e64d932f5 100644
--- a/R/optObj_sybilGUROBIClass.R
+++ b/R/optObj_sybilGUROBIClass.R
@@ -245,7 +245,7 @@ setMethod("addRowsToProb", signature(lp = "optObj_sybilGUROBI"),
 
         
         for (k in seq(along = i)) {
-            ltype <- switch(type[k],
+            ltype <- switch(EXPR = type[k],
                             "L" = { ">=" },
                             "U" = { "<=" },
                             "E" = { "=" },
@@ -391,7 +391,7 @@ setMethod("loadLPprob", signature(lp = "optObj_sybilGUROBI"),
         stopifnot(is(mat, "Matrix"))
 
         crtype <- sapply(rtype,
-                         function(x) switch(x,
+                         function(x) switch(EXPR = x,
                                             "L" = { ">=" },
                                             "U" = { "<=" },
                                             "E" = { "="  },
diff --git a/inst/NEWS.Rd b/inst/NEWS.Rd
index c1eb4ba51b4bd5643aa6fff32aab627dacad8b09..9f2b7fa9acd819d92543afb35eb2f9aa63523e30 100644
--- a/inst/NEWS.Rd
+++ b/inst/NEWS.Rd
@@ -6,6 +6,14 @@
 
 \newcommand{\CRANpkg}{\href{http://CRAN.R-project.org/package=#1}{\pkg{#1}}}
 
+% ---------------------------------------------------------------------------- %
+\section{Changes in version 1.0.5 2015-11-16}{
+  \itemize{
+    \item switch statemens need explicit name of EXPR
+    \item changes on imports
+  }
+}
+
 % ---------------------------------------------------------------------------- %
 \section{Changes in version 1.0.4 2013-07-23}{
   \itemize{