diff --git a/src/MPIReco.jl b/src/MPIReco.jl
index 8dbd756..bd95399 100644
--- a/src/MPIReco.jl
+++ b/src/MPIReco.jl
@@ -9,6 +9,7 @@ module MPIReco
   const shape = MPIFiles.shape
   @reexport using DSP
   using ProgressMeter
+  using Unitful
 
   using LinearAlgebra
   using SparseArrays