diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 5c42a1c..1e8ad5b 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - 'main'
     tags: '*'
+  pull_request:
 
 permissions:
   pull-requests: write
@@ -18,7 +19,7 @@ jobs:
             - uses: actions/checkout@v2
             - uses: julia-actions/setup-julia@v1
               with:
-                version: "1.8"
+                version: "1"
             - uses: julia-actions/cache@v1
             - name: Extract Package Name from Project.toml
               id: extract-package-name
diff --git a/src/utils.jl b/src/utils.jl
index d0fe1a6..ae92f55 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -273,6 +273,13 @@ end
     real_and_imag(v)
 
 Return a view over the real and imaginary parts of a complex vector `v`.
+
+```jldoctest
+julia> v = [1.0 + 2.0im, 3.0 + 4.0im];
+
+julia> vr,vi = IFGF.real_and_imag(v)
+([1.0, 3.0], [2.0, 4.0])
+```
 """
 function real_and_imag(v::AbstractVector{Complex{T}}) where {T<:Real}
     vfloat = reinterpret(T, v)