diff --git a/src/implementations/polar.jl b/src/implementations/polar.jl
index fabb261c2..0e0cb553b 100644
--- a/src/implementations/polar.jl
+++ b/src/implementations/polar.jl
@@ -1,7 +1,7 @@
 # Inputs
 # ------
-copy_input(::typeof(left_polar), A::AbstractMatrix) = copy_input(svd_full, A)
-copy_input(::typeof(right_polar), A::AbstractMatrix) = copy_input(svd_full, A)
+copy_input(::typeof(left_polar), A) = copy_input(svd_full, A)
+copy_input(::typeof(right_polar), A) = copy_input(svd_full, A)
 
 function check_input(::typeof(left_polar!), A::AbstractMatrix, WP)
     m, n = size(A)
diff --git a/src/implementations/svd.jl b/src/implementations/svd.jl
index fa69b3d31..9de3777d2 100644
--- a/src/implementations/svd.jl
+++ b/src/implementations/svd.jl
@@ -1,10 +1,10 @@
 # Inputs
 # ------
-function copy_input(::typeof(svd_full), A::AbstractMatrix)
+function copy_input(::typeof(svd_full), A)
     return copy!(similar(A, float(eltype(A))), A)
 end
-copy_input(::typeof(svd_compact), A::AbstractMatrix) = copy_input(svd_full, A)
-copy_input(::typeof(svd_vals), A::AbstractMatrix) = copy_input(svd_full, A)
+copy_input(::typeof(svd_compact), A) = copy_input(svd_full, A)
+copy_input(::typeof(svd_vals), A) = copy_input(svd_full, A)
 copy_input(::typeof(svd_trunc), A) = copy_input(svd_compact, A)
 
 # TODO: many of these checks are happening again in the LAPACK routines