diff --git a/pkgs/by-name/im/imagemagick/package.nix b/pkgs/by-name/im/imagemagick/package.nix
index 0f4fef3d4a764..7a1de6869e9d9 100644
--- a/pkgs/by-name/im/imagemagick/package.nix
+++ b/pkgs/by-name/im/imagemagick/package.nix
@@ -174,7 +174,7 @@ stdenv.mkDerivation (finalAttrs: {
     configDestination=($out/share/ImageMagick-*)
     grep -v '/nix/store' $dev/lib/ImageMagick-*/config-Q16HDRI/configure.xml > $configDestination/configure.xml
     for file in "$dev"/bin/*-config; do
-      substituteInPlace "$file" --replace pkg-config \
+      substituteInPlace "$file" --replace-fail "$PKG_CONFIG" \
         "PKG_CONFIG_PATH='$dev/lib/pkgconfig' '$(command -v $PKG_CONFIG)'"
     done
   ''
diff --git a/pkgs/development/php-packages/imagick/default.nix b/pkgs/development/php-packages/imagick/default.nix
index bea439c594172..8b1e40cc033c8 100644
--- a/pkgs/development/php-packages/imagick/default.nix
+++ b/pkgs/development/php-packages/imagick/default.nix
@@ -1,21 +1,23 @@
 {
   buildPecl,
-  fetchpatch,
   lib,
   imagemagick,
   pkg-config,
   pcre2,
-  php,
 }:
 
 buildPecl {
   pname = "imagick";
 
   version = "3.8.1";
-  sha256 = "sha256-OjWHwKUkwX0NrZZzoWC5DNd26DaDhHThc7VJ7YZDUu4=";
+  hash = "sha256-OjWHwKUkwX0NrZZzoWC5DNd26DaDhHThc7VJ7YZDUu4=";
 
   configureFlags = [ "--with-imagick=${imagemagick.dev}" ];
+
+  depsBuildBuild = [ pkg-config ];
+
   nativeBuildInputs = [ pkg-config ];
+
   buildInputs = [ pcre2 ];
 
   meta = {