diff --git a/src/Bridges/Constraint/det.jl b/src/Bridges/Constraint/det.jl
index f6e1ec4fad..20f15d87d8 100644
--- a/src/Bridges/Constraint/det.jl
+++ b/src/Bridges/Constraint/det.jl
@@ -199,8 +199,8 @@ function subsum(
     l::Vector{MOI.VariableIndex},
     ::Type{T},
 ) where {T}
-    n = length(l)
-    f = MOIU.operate!(-, T, t, MOIU.operate(sum, T, l))
+    rhs = MOI.ScalarAffineFunction(MOI.ScalarAffineTerm.(one(T), l), zero(T))
+    f = MOIU.operate!(-, T, t, rhs)
     return MOIU.normalize_and_add_constraint(
         model,
         f,
diff --git a/src/Bridges/Constraint/norm_spec_nuc_to_psd.jl b/src/Bridges/Constraint/norm_spec_nuc_to_psd.jl
index 2284aa3e84..97b77130d1 100644
--- a/src/Bridges/Constraint/norm_spec_nuc_to_psd.jl
+++ b/src/Bridges/Constraint/norm_spec_nuc_to_psd.jl
@@ -210,14 +210,13 @@ function bridge_constraint(
         [U[trimap(i, i)] for i in 1:column_dim],
         [V[trimap(i, i)] for i in 1:row_dim],
     )
+    rhs = MOI.ScalarAffineFunction(
+        MOI.ScalarAffineTerm.(one(T), diag_vars),
+        zero(T),
+    )
     ge_index = MOIU.normalize_and_add_constraint(
         model,
-        MOIU.operate(
-            -,
-            T,
-            f_scalars[1],
-            MOIU.operate!(/, T, MOIU.operate(sum, T, diag_vars), T(2)),
-        ),
+        MOIU.operate(-, T, f_scalars[1], MOIU.operate!(/, T, rhs, T(2))),
         MOI.GreaterThan(zero(T)),
         allow_modify_function = true,
     )
diff --git a/src/Bridges/Constraint/norm_to_lp.jl b/src/Bridges/Constraint/norm_to_lp.jl
index 120045cb5a..02cbfc3e41 100644
--- a/src/Bridges/Constraint/norm_to_lp.jl
+++ b/src/Bridges/Constraint/norm_to_lp.jl
@@ -101,7 +101,8 @@ function bridge_constraint(
     f_scalars = MOIU.eachscalar(f)
     d = MOI.dimension(s)
     y = MOI.add_variables(model, d - 1)
-    ge = MOIU.operate(-, T, f_scalars[1], MOIU.operate(sum, T, y))
+    rhs = MOI.ScalarAffineFunction(MOI.ScalarAffineTerm.(one(T), y), zero(T))
+    ge = MOIU.operate(-, T, f_scalars[1], rhs)
     lb = f_scalars[2:d]
     ub = MOIU.operate(-, T, lb)
     lb = MOIU.operate!(+, T, lb, MOI.VectorOfVariables(y))
diff --git a/src/Bridges/Constraint/relentr_to_exp.jl b/src/Bridges/Constraint/relentr_to_exp.jl
index 0db07a87f3..85c7d4e913 100644
--- a/src/Bridges/Constraint/relentr_to_exp.jl
+++ b/src/Bridges/Constraint/relentr_to_exp.jl
@@ -23,9 +23,10 @@ function bridge_constraint(
     d = MOI.dimension(s)
     v_dim = div(d - 1, 2)
     y = MOI.add_variables(model, v_dim)
+    rhs = MOI.ScalarAffineFunction(MOI.ScalarAffineTerm.(one(T), y), zero(T))
     ge_index = MOIU.normalize_and_add_constraint(
         model,
-        MOIU.operate(-, T, f_scalars[1], MOIU.operate(sum, T, y)),
+        MOIU.operate(-, T, f_scalars[1], rhs),
         MOI.GreaterThan(zero(T)),
         allow_modify_function = true,
     )
diff --git a/src/Utilities/functions.jl b/src/Utilities/functions.jl
index e4e5b1c061..fb82123ba0 100644
--- a/src/Utilities/functions.jl
+++ b/src/Utilities/functions.jl
@@ -2492,15 +2492,6 @@ function Base.:/(f::Union{MOI.SingleVariable,MOI.VectorOfVariables}, g::Number)
     return operate(/, typeof(g), f, g)
 end
 
-## sum
-function operate(
-    ::typeof(sum),
-    ::Type{T},
-    vis::Vector{MOI.VariableIndex},
-) where {T}
-    return MOI.ScalarAffineFunction(MOI.ScalarAffineTerm.(one(T), vis), zero(T))
-end
-
 #################### Concatenation of MOI functions: `vcat` ####################
 """
     fill_vector(vector::Vector, ::Type{T}, fill_func::Function,