diff --git a/src/Express.jl b/src/Express.jl
index 20fe1e8c..74ef3e59 100644
--- a/src/Express.jl
+++ b/src/Express.jl
@@ -7,7 +7,8 @@ import Unitful
 
 import Configurations: convert_to_option
 
-myuparse(str::AbstractString) = uparse(str; unit_context = Unitful.unitmodules)
+myuparse(str::AbstractString) =
+    uparse(filter(!isspace, str); unit_context = Unitful.unitmodules)
 
 abstract type Calculation end
 abstract type ElectronicStructure <: Calculation end