diff --git a/cmd/example-get-all-messages-from-file/main.go b/cmd/example-get-all-messages-from-file/main.go
index adec0a9..7b79dbb 100644
--- a/cmd/example-get-all-messages-from-file/main.go
+++ b/cmd/example-get-all-messages-from-file/main.go
@@ -7,7 +7,7 @@ import (
 	"runtime/debug"
 	"time"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 
 	"github.com/amsokol/go-eccodes"
 	cio "github.com/amsokol/go-eccodes/io"
diff --git a/cmd/example-get-messages-from-file-by-index/main.go b/cmd/example-get-messages-from-file-by-index/main.go
index 03df0fd..473f6c8 100644
--- a/cmd/example-get-messages-from-file-by-index/main.go
+++ b/cmd/example-get-messages-from-file-by-index/main.go
@@ -8,7 +8,7 @@ import (
 	"time"
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 
 	"github.com/amsokol/go-eccodes"
 )
diff --git a/file.go b/file.go
index 262f1f5..ca7af70 100644
--- a/file.go
+++ b/file.go
@@ -4,7 +4,7 @@ import (
 	"io"
 	"runtime"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 
 	"github.com/amsokol/go-eccodes/debug"
 	cio "github.com/amsokol/go-eccodes/io"
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..1d902a9
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/amsokol/go-eccodes
+
+go 1.13
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..47f3621
--- /dev/null
+++ b/go.sum
@@ -0,0 +1 @@
+github.com/amsokol/go-errors v0.0.0-20171006134924-ba7835dc5427/go.mod h1:qIXF05lwS6DpzJFTdD+z7Sxzgn4Ci2gobSJSGS/sauc=
diff --git a/native/eccodes-handle.go b/native/eccodes-handle.go
index fc7d568..c41ec5d 100644
--- a/native/eccodes-handle.go
+++ b/native/eccodes-handle.go
@@ -9,7 +9,7 @@ import (
 	"io"
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 )
 
 func Ccodes_handle_new_from_index(index Ccodes_index) (Ccodes_handle, error) {
diff --git a/native/eccodes-index.go b/native/eccodes-index.go
index 4c0b2e9..92744ce 100644
--- a/native/eccodes-index.go
+++ b/native/eccodes-index.go
@@ -8,7 +8,7 @@ import "C"
 import (
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 )
 
 func Ccodes_index_new_from_file(ctx Ccodes_context, filename string, keys string) (Ccodes_index, error) {
diff --git a/native/eccodes-keys-iterator.go b/native/eccodes-keys-iterator.go
index c85f7b3..aaebf28 100644
--- a/native/eccodes-keys-iterator.go
+++ b/native/eccodes-keys-iterator.go
@@ -7,7 +7,7 @@ import "C"
 import (
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 )
 
 func Ccodes_keys_iterator_new(handle Ccodes_handle, flags int, namespace string) Ccodes_keys_iterator {
diff --git a/native/eccodes-values.go b/native/eccodes-values.go
index 65f8512..029f0e2 100644
--- a/native/eccodes-values.go
+++ b/native/eccodes-values.go
@@ -7,7 +7,7 @@ import "C"
 import (
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 
 	"github.com/amsokol/go-eccodes/debug"
 )
diff --git a/native/+linux_amd64.go b/native/plus_linux_amd64.go
similarity index 63%
rename from native/+linux_amd64.go
rename to native/plus_linux_amd64.go
index 4243322..593a39a 100644
--- a/native/+linux_amd64.go
+++ b/native/plus_linux_amd64.go
@@ -3,7 +3,8 @@
 package native
 
 /*
-#cgo LDFLAGS: -leccodes -leccodes_memfs -lpng -laec -ljasper -lopenjp2 -lz -lm
+#cgo LDFLAGS: -leccodes -lpng -laec -lopenjp2 -lz -lm
+//removed: -leccodes_memfs -ljasper
 */
 import "C"
 
diff --git a/native/+windows_amd64.go b/native/plus_windows_amd64.go
similarity index 100%
rename from native/+windows_amd64.go
rename to native/plus_windows_amd64.go
diff --git a/native/stdio.go b/native/stdio.go
index a7e2b15..c9e36b2 100644
--- a/native/stdio.go
+++ b/native/stdio.go
@@ -8,7 +8,7 @@ import "C"
 import (
 	"unsafe"
 
-	"github.com/amsokol/go-errors"
+	"github.com/pkg/errors"
 )
 
 func Cfopen(filename string, mode string) (CFILE, error) {