diff --git a/src/variables.jl b/src/variables.jl
index 763b189785..0e8929d252 100644
--- a/src/variables.jl
+++ b/src/variables.jl
@@ -147,7 +147,7 @@ supports_add_constrained_variables(::ModelLike, ::Type{Reals}) = true
 """
     add_constrained_variables(
         model::ModelLike,
-        sets:AbstractVector{<:AbstractScalarSet}
+        sets::AbstractVector{<:AbstractScalarSet}
     )::Tuple{Vector{MOI.VariableIndex},
              Vector{MOI.ConstraintIndex{MOI.SingleVariable, eltype(sets)}}}