diff --git a/src/Utilities/print.jl b/src/Utilities/print.jl
index c9aff0ea8d..87cc0602c9 100644
--- a/src/Utilities/print.jl
+++ b/src/Utilities/print.jl
@@ -268,7 +268,7 @@ function _to_string(
     f::MOI.AbstractVectorFunction,
 )
     rows = map(fi -> _to_string(options, model, fi), scalarize(f))
-    max_length = maximum(length.(rows))
+    max_length = mapreduce(length, max, rows; init = 0)
     s = join(map(r -> string("│", rpad(r, max_length), "│"), rows), '\n')
     return string(
         "┌",
diff --git a/test/Utilities/test_print.jl b/test/Utilities/test_print.jl
index a22f12e67c..87e5bc1fc3 100644
--- a/test/Utilities/test_print.jl
+++ b/test/Utilities/test_print.jl
@@ -762,6 +762,22 @@ function test_print_constraint_name_unsupported()
     return
 end
 
+function test_print_zero_dimensional_function()
+    for f in Any[
+        MOI.VectorOfVariables(MOI.VariableIndex[]),
+        MOI.VectorAffineFunction(MOI.VectorAffineTerm{Float64}[], Float64[]),
+        MOI.VectorQuadraticFunction(
+            MOI.VectorQuadraticTerm{Float64}[],
+            MOI.VectorAffineTerm{Float64}[],
+            Float64[],
+        ),
+        MOI.VectorNonlinearFunction(MOI.ScalarNonlinearFunction[]),
+    ]
+        @test sprint(show, f) == "┌┐\n\n└┘"
+    end
+    return
+end
+
 end
 
 TestPrint.runtests()