diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,9 @@
+## 0.1.4
+
+* Fix a bug resulting in a bogus error, something like "Field [time] found at
+  different indexes.." even though the field has exactly the same index at all
+  places.
+
 ## 0.1.3
 
 * Add maxrss plotting support
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 # bench-graph
 
+[![Hackage](https://img.shields.io/hackage/v/bench-graph.svg?style=flat)](https://hackage.haskell.org/package/bench-graph)
+[![Build Status](https://travis-ci.org/composewell/bench-graph.svg?branch=master)](https://travis-ci.org/composewell/bench-graph)
+[![Windows Build status](https://ci.appveyor.com/api/projects/status/5u19xvm7sn7salrh?svg=true)](https://ci.appveyor.com/project/harendra-kumar/bench-graph)
+
 An easy to use package to plot the benchmarking results data generated by
 `gauge` or `criterion` (with `--csv` or `--csvraw` options).
 
diff --git a/bench-graph.cabal b/bench-graph.cabal
--- a/bench-graph.cabal
+++ b/bench-graph.cabal
@@ -1,5 +1,5 @@
 name:               bench-graph
-version:            0.1.3
+version:            0.1.4
 synopsis:           Plot and compare benchmarks
 description:
   Plot benchmarks and compare them. An easy to use package to produce pretty
@@ -15,7 +15,9 @@
 bug-reports:         https://github.com/composewell/bench-graph/issues
 license:             BSD3
 license-file:        LICENSE
-tested-with:         GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with:           GHC==8.4.3
+                     , GHC==8.2.2
+                     , GHC==7.10.3
 author:              Harendra Kumar
 maintainer:          harendra.kumar@gmail.com
 copyright:           2017 Composewell Technologies
@@ -28,7 +30,6 @@
     Changelog.md
     README.md
     stack.yaml
-    stack-8.0.yaml
     stack-8.2.yaml
     test/results.csv
     test/results.csvraw
diff --git a/lib/BenchGraph.hs b/lib/BenchGraph.hs
--- a/lib/BenchGraph.hs
+++ b/lib/BenchGraph.hs
@@ -44,8 +44,8 @@
 import Control.Monad (when)
 import Control.Monad.Trans.State.Lazy (get, put)
 import Data.Char (toUpper)
-import Data.Function ((&))
-import Data.List (nub, transpose, findIndex, groupBy, (\\), group, sort)
+import Data.Function ((&), on)
+import Data.List (nub, nubBy, transpose, findIndex, groupBy, (\\), group, sort)
 import Data.Maybe (catMaybes, fromMaybe, maybe)
 import Debug.Trace (trace)
 import System.Directory (createDirectoryIfMissing)
@@ -353,7 +353,8 @@
 -- can return multiple indexes or empty list
 getFieldIndexUnchecked :: String -> [(Int, [String])] -> [(Int, Int)]
 getFieldIndexUnchecked fieldName csvlines =
-    nub $ catMaybes $ map (getFieldIndexInLine fieldName) csvlines
+    nubBy ((==) `on` snd) $
+        catMaybes $ map (getFieldIndexInLine fieldName) csvlines
 
 getFieldIndexChecked :: String -> [(Int, [String])] -> Int
 getFieldIndexChecked fieldName csvlines =
diff --git a/stack-8.0.yaml b/stack-8.0.yaml
deleted file mode 100644
--- a/stack-8.0.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-resolver: lts-9.21
-packages:
-- '.'
-extra-deps:
-  - SVGFonts-1.6.0.3
-  - diagrams-core-1.4.0.1
-  - diagrams-lib-1.4.2
-  - diagrams-postscript-1.4
-  - diagrams-svg-1.4.1.1
-  - diagrams-solve-0.1.1
-  - dual-tree-0.2.1
-  - lens-4.15.4
-  - free-4.12.4