diff --git a/hocilib.cabal b/hocilib.cabal
--- a/hocilib.cabal
+++ b/hocilib.cabal
@@ -1,5 +1,5 @@
 name:               hocilib
-version:            0.0.0
+version:            0.1.0
 license:            BSD3
 license-file:       LICENSE
 category:           Database, Oracle, Ocilib, FFI
@@ -62,6 +62,7 @@
 
   cc-options:       -Wall
   extra-libraries:  ocilib
+  extra-lib-dirs:   /usr/local/lib
 
   build-depends: base             >= 4.8 && < 5
                , containers       >= 0.5 && < 1
@@ -78,6 +79,9 @@
   other-modules:
 
   default-language: Haskell2010
+
+  extra-libraries: ocilib
+  extra-lib-dirs: /usr/local/lib
 
   build-depends: base
                , bytestring
diff --git a/src/Database/Ocilib/Statement.hs b/src/Database/Ocilib/Statement.hs
--- a/src/Database/Ocilib/Statement.hs
+++ b/src/Database/Ocilib/Statement.hs
@@ -54,6 +54,7 @@
 import qualified Language.C.Inline as C
 import           Database.Ocilib.Oci
 import           Database.Ocilib.Enums
+import           Database.Ocilib.Internal
 
 C.context (C.baseCtx <> C.funCtx <> ociCtx)
 
@@ -62,8 +63,8 @@
 -- Executing Statements
 
 -- | Create a statement object and return its handle.
-ociStatementCreate :: Ptr OCI_Connection -> IO (Ptr OCI_Statement)
-ociStatementCreate c = [C.exp| OCI_Statement* { OCI_StatementCreate($(OCI_Connection *c)) } |]
+ociStatementCreate :: Ptr OCI_Connection -> IO (Maybe (Ptr OCI_Statement))
+ociStatementCreate c = fmap toMaybePtr [C.exp| OCI_Statement* { OCI_StatementCreate($(OCI_Connection *c)) } |]
 
 -- | Free a statement and all resources associated to it (resultsets ...)
 ociStatementFree :: Ptr OCI_Statement -> IO Bool
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-6.12
+resolver: lts-6.13
 packages:
 - '.'
 extra-deps: []
@@ -6,3 +6,6 @@
 extra-package-dbs: []
 extra-include-dirs: []
 extra-lib-dirs: []
+docker:
+  enable: false
+  repo: mystack:latest
diff --git a/tests/Tests.hs b/tests/Tests.hs
--- a/tests/Tests.hs
+++ b/tests/Tests.hs
@@ -35,7 +35,7 @@
     case maybeC of
         Nothing -> assertFailure "failed to create connection"
         Just c -> do
-            st <- ociStatementCreate c
+            Just st <- ociStatementCreate c
             b <- ociExecuteStmt st "select * from test_fetch"
             assertBool "ociExecuteStatement" b
 
@@ -113,7 +113,7 @@
     case maybeC of
         Nothing -> assertFailure "unable to connect"
         Just c -> do
-            st <- ociStatementCreate c
+            Just st <- ociStatementCreate c
             ociSetBindAllocation st OCI_BAM_INTERNAL
             b <- ociPrepare st "select * from test_fetch where article=(:article)"
             assertBool "prepared" b