diff --git a/src/manifolds/FixedRankMatrices.jl b/src/manifolds/FixedRankMatrices.jl
index 2364002a00..97bc66fd18 100644
--- a/src/manifolds/FixedRankMatrices.jl
+++ b/src/manifolds/FixedRankMatrices.jl
@@ -613,7 +613,8 @@ function representation_size(M::FixedRankMatrices)
 end
 
 @doc raw"""
-    retract(M, p, X, ::OrthographicRetraction)
+    retract(M::FixedRankMatrices, p, X, ::OrthographicRetraction)
+
 Compute the OrthographicRetraction on the [`FixedRankMatrices`](@ref) `M` by finding
 the nearest point to ``p + X`` in