diff --git a/src/JuliaFEM.jl b/src/JuliaFEM.jl
index a454199..7f4573e 100644
--- a/src/JuliaFEM.jl
+++ b/src/JuliaFEM.jl
@@ -7,7 +7,7 @@ VERSION < v"0.4-" && using Docile
 using Lexicon
 
 include("types.jl") # type definitions
-include("interpolate.jl")
+include("interpolation.jl")
 include("elasticity_solver.jl")
 include("xdmf.jl")
 include("abaqus_reader.jl")
diff --git a/src/interpolate.jl b/src/interpolation.jl
similarity index 100%
rename from src/interpolate.jl
rename to src/interpolation.jl
diff --git a/test/test_interpolate.jl b/test/test_interpolation.jl
similarity index 100%
rename from test/test_interpolate.jl
rename to test/test_interpolation.jl