diff --git a/src/functions.jl b/src/functions.jl
index a74121a2ab..383a8d195e 100644
--- a/src/functions.jl
+++ b/src/functions.jl
@@ -303,7 +303,8 @@ end
 
 # For affine and quadratic functions, terms are compressed in a dictionary using `_dicts` and then the dictionaries are compared with `dict_compare`
 function dict_compare(d1::Dict, d2::Dict{<:Any,T}, compare::Function) where {T}
-    return all(kv -> compare(kv.second, Base.get(d2, kv.first, zero(T))), d1)
+    return all(kv -> compare(kv.second, Base.get(d2, kv.first, zero(T))), d1) &&
+           all(kv -> compare(kv.second, Base.get(d1, kv.first, zero(T))), d2)
 end
 
 # Build a dictionary where the duplicate keys are summed
diff --git a/test/Bridges/Variable/zeros.jl b/test/Bridges/Variable/zeros.jl
index 66f1ae26f5..1d111cbba5 100644
--- a/test/Bridges/Variable/zeros.jl
+++ b/test/Bridges/Variable/zeros.jl
@@ -149,7 +149,7 @@ end
     s = """
     variables: x
     x >= 0.0
-    con1: x + 0.0 == 0.0
+    con1: 0.0 == 0.0
     con2: x + 0.0 >= 1.0
     minobjective: x
     """
diff --git a/test/functions.jl b/test/functions.jl
index fbe5c46ccd..2bf2d73af5 100644
--- a/test/functions.jl
+++ b/test/functions.jl
@@ -139,6 +139,9 @@ function test_isapprox_ScalarAffineFunction()
     @test g ≈ f
     f.terms[2] = MOI.ScalarAffineTerm(3, y)
     @test !(g ≈ f)
+    pop!(f.terms)
+    @test !(g ≈ f)
+    @test !(f ≈ g)
 end
 
 function test_isapprox_VectorAffineFunction()
@@ -157,6 +160,9 @@ function test_isapprox_VectorAffineFunction()
     @test !(f ≈ g)
     push!(f.terms, MOI.VectorAffineTerm(2, MOI.ScalarAffineTerm(-6, y)))
     @test f ≈ g
+    pop!(g.terms)
+    @test !(g ≈ f)
+    @test !(f ≈ g)
 end
 
 function test_isapprox_ScalarQuadraticFunction()
@@ -177,6 +183,9 @@ function test_isapprox_ScalarQuadraticFunction()
     @test !(f ≈ g)
     push!(f.quadratic_terms, MOI.ScalarQuadraticTerm(-2, y, x))
     @test f ≈ g
+    pop!(g.quadratic_terms)
+    @test !(g ≈ f)
+    @test !(f ≈ g)
 end
 
 function test_isapprox_VectorQuadraticFunction()
@@ -204,6 +213,11 @@ function test_isapprox_VectorQuadraticFunction()
     f.quadratic_terms[1] =
         MOI.VectorQuadraticTerm(3, MOI.ScalarQuadraticTerm(1, x, x))
     @test !(f ≈ g)
+    f.quadratic_terms[1] =
+        MOI.VectorQuadraticTerm(1, MOI.ScalarQuadraticTerm(1, x, x))
+    pop!(f.quadratic_terms)
+    @test !(g ≈ f)
+    @test !(f ≈ g)
 end
 
 function runtests()