diff --git a/bob.go b/bob.go
index 420e1e9..c25e097 100644
--- a/bob.go
+++ b/bob.go
@@ -1,6 +1,13 @@
 package bob
 
-import "github.com/lann/builder"
+import (
+	"errors"
+
+	"github.com/lann/builder"
+)
+
+var ErrEmptyTable = errors.New("sql: no rows in result set")
+var ErrEmptyTablePgx = errors.New("no rows in result set")
 
 // BobBuilderType is the type for BobBuilder
 type BobBuilderType builder.Builder