diff --git a/src/gradients/changing_gradient_blocks.jl b/src/gradients/changing_gradient_blocks.jl
index a759eac6045e072a3fe933f5d72ed043d0fdc7c3..2ffd9cb169208d9ec7b611160b9ecb59958b9c5e 100644
--- a/src/gradients/changing_gradient_blocks.jl
+++ b/src/gradients/changing_gradient_blocks.jl
@@ -15,7 +15,7 @@ struct AbstractChangingGradientBlock{T<:VariableType} <: GradientBlock
 end
 
 """
-    ChangingGradientBlock(duration, gradient_strength, rotate, scale)
+    ChangingGradientBlock(grad1, grad2, duration, rotate, scale)
 
 Underlying type for any linearly changing part in a gradient waveform.
 
@@ -26,7 +26,7 @@ Do not create this directly, it will be created by the gradient waveforms.
 const ChangingGradientBlock = AbstractChangingGradientBlock{VariableType}
 
 """
-    FixedChangingGradientBlock(duration, gradient_strength, rotate, scale)
+    FixedChangingGradientBlock(grad1, grad2, duration, rotate, scale)
 
 Fixed equivalent of [`ChangingGradientBlock`](@ref).
 """
diff --git a/src/gradients/constant_gradient_blocks.jl b/src/gradients/constant_gradient_blocks.jl
index dce6fb3b5c56f6181018995b9da55bf0c774a787..4001c423330da21903a1107bbe6245fb3d3ae493 100644
--- a/src/gradients/constant_gradient_blocks.jl
+++ b/src/gradients/constant_gradient_blocks.jl
@@ -26,7 +26,7 @@ Do not create this directly, it will be created by the gradient waveforms.
 const ConstantGradientBlock = AbstractConstantGradientBlock{VariableType}
 
 """
-    FixedConstantGradientBlock(duration, gradient_strength, rotate, scale)
+    FixedConstantGradientBlock(gradient_strength, duration, rotate, scale)
 
 Fixed equivalent of [`ConstantGradientBlock`](@ref).
 """