diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000..938ae4c2
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,3 @@
+ignore:
+  - "docs"
+  - "examples"
diff --git a/src/TiffImages.jl b/src/TiffImages.jl
index 7d7f4c90..021932ca 100644
--- a/src/TiffImages.jl
+++ b/src/TiffImages.jl
@@ -31,4 +31,14 @@ include("load.jl")
 
 @deprecate TiffFile(::Type{O}) where O<:Unsigned TiffFile{O}()
 
+## Precompilation helper
+mktemp() do fpath, _
+    for t in [N0f8, N0f16, Float32, Float64]
+        for c in [Gray, GrayA, RGB, RGBA]
+            TiffImages.save(fpath, rand(c{t}, 2, 2))
+            TiffImages.load(fpath)
+        end
+    end
+end
+
 end # module