diff --git a/pkgs/build-support/fetchpatch/default.nix b/pkgs/build-support/fetchpatch/default.nix
index 740baa8cff5f..6e25b2d6ecc5 100644
--- a/pkgs/build-support/fetchpatch/default.nix
+++ b/pkgs/build-support/fetchpatch/default.nix
@@ -54,9 +54,9 @@ fetchurl ({
       "$tmpfile" > "$out"
 
     if [ ! -s "$out" ]; then
-      echo "error: Filtered patch '$out$' is empty (while the original patch file was not)!" 1>&2
+      echo "error: Filtered patch '$out' is empty (while the original patch file was not)!" 1>&2
       echo "Check your includes and excludes." 1>&2
-      echo "Normalizd patch file was:" 1>&2
+      echo "Normalized patch file was:" 1>&2
       cat "$tmpfile" 1>&2
       exit 1
     fi