diff --git a/scri/asymptotic_bondi_data/from_initial_values.py b/scri/asymptotic_bondi_data/from_initial_values.py
index 1d1041b4..2760c107 100644
--- a/scri/asymptotic_bondi_data/from_initial_values.py
+++ b/scri/asymptotic_bondi_data/from_initial_values.py
@@ -100,7 +100,7 @@ def asany_atleast2d_complex(a):
         ψ3_0 = -ð(conjugate(σ_1))
         ψ3_1 = -2 * ð(conjugate(σ_2))
         abd.psi3 = u * ψ3_1 + ψ3_0
-        # ψ₂ = ∫ (-ðψ₃ + σψ₄) du
+        # ψ₂ = ∫ (ðψ₃ + σψ₄) du
         ψ2_0 = (
             ModesTimeSeries(psi2, u, spin_weight=0, multiplication_truncator=max).real
             - 1j * (σ_0.bar.eth_GHP.eth_GHP + σ_0 * σ_1.bar).imag
diff --git a/tests/test_abd_ivp.py b/tests/test_abd_ivp.py
index 44afefa5..bc423a05 100644
--- a/tests/test_abd_ivp.py
+++ b/tests/test_abd_ivp.py
@@ -55,7 +55,7 @@ def validator(abd):
 def test1():
     """Add ℓ=0 term to ψ₂ intial value
     
-    Ensures that first terms of ψ̇₁u = -ðψ₂ + 2σψ₃ and ψ̇₀ = -ðψ₁ + 3σψ₂ don't get excited
+    Ensures that first terms of ψ̇₁u = ðψ₂ + 2σψ₃ and ψ̇₀ = ðψ₁ + 3σψ₂ don't get excited
     
     """
 
@@ -85,7 +85,7 @@ def validator(abd):
 def test2():
     """Add ℓ=1 term to ψ₂ intial value
     
-    Checks first term of ψ̇₁ = -ðψ₂ + 2σψ₃
+    Checks first term of ψ̇₁ = ðψ₂ + 2σψ₃
     
     """
 
@@ -115,7 +115,7 @@ def validator(abd):
 def test3():
     """Add ℓ=2 term to ψ₂ intial value
     
-    Checks first term of ψ̇₀ = -ðψ₁ + 3σψ₂
+    Checks first term of ψ̇₀ = ðψ₁ + 3σψ₂
     
     """
 
@@ -147,7 +147,7 @@ def validator(abd):
 def test4():
     """Add nonzero constant term to σ
     
-    Checks first term of ψ̇₁ = -ðψ₂ + 2σψ₃ and second term of ψ̇₀ = -ðψ₁ + 3σψ₂
+    Checks first term of ψ̇₁ = ðψ₂ + 2σψ₃ and second term of ψ̇₀ = ðψ₁ + 3σψ₂
     
     After satisfaction of the reality condition on the mass aspect, ψ₂ has nonzero modes in
     {(0, 0), (2, -2), (2, 2)}, so ψ₁ should have nonzero modes in {(2, -2), (2, 2)}.  Here,
@@ -182,7 +182,7 @@ def validator(abd):
 def test5():
     """Add nonzero ℓ=2 term to σ̇
 
-    Checks second term of ψ̇₁ = -ðψ₂ + 2σψ₃
+    Checks second term of ψ̇₁ = ðψ₂ + 2σψ₃
 
     """
 
@@ -212,7 +212,7 @@ def validator(abd):
 def test6():
     """Add nonzero ℓ=2 term to σ̈
 
-    Checks second term of ψ̇₂ = -ðψ₃ + σψ₄
+    Checks second term of ψ̇₂ = ðψ₃ + σψ₄
 
     """