2 files changed, 5 insertions, 5 deletions
diff --git a/pkgs/development/compilers/crystal/build-package.nix b/pkgs/development/compilers/crystal/build-package.nix
index bcac4eeb9c46..1d8b0137eb0c 100644
--- a/pkgs/development/compilers/crystal/build-package.nix
+++ b/pkgs/development/compilers/crystal/build-package.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, crystal, shards, git, pkgconfig, which, linkFarm, fetchFromGitHub, installShellFiles }:
+{ stdenv, lib, crystal, shards, git, pkg-config, which, linkFarm, fetchFromGitHub, installShellFiles }:
 
 {
   # Some projects do not include a lock file, so you can pass one
@@ -61,7 +61,7 @@ stdenv.mkDerivation (mkDerivationArgs // {
   buildInputs = args.buildInputs or [ ] ++ [ crystal ]
     ++ lib.optional (format != "crystal") shards;
 
-  nativeBuildInputs = args.nativeBuildInputs or [ ] ++ [ git installShellFiles pkgconfig which ];
+  nativeBuildInputs = args.nativeBuildInputs or [ ] ++ [ git installShellFiles pkg-config which ];
 
   buildPhase = args.buildPhase or (lib.concatStringsSep "\n" ([
     "runHook preBuild"
diff --git a/pkgs/development/compilers/crystal/default.nix b/pkgs/development/compilers/crystal/default.nix
index fa8198fabad9..b449d66d3ba4 100644
--- a/pkgs/development/compilers/crystal/default.nix
+++ b/pkgs/development/compilers/crystal/default.nix
@@ -18,7 +18,7 @@
 , makeWrapper
 , openssl
 , pcre
-, pkgconfig
+, pkg-config
 , readline
 , tzdata
 , which
@@ -134,7 +134,7 @@ let
 
         buildInputs = commonBuildInputs extraBuildInputs;
 
-        nativeBuildInputs = [ binary makeWrapper which pkgconfig llvmPackages.llvm ];
+        nativeBuildInputs = [ binary makeWrapper which pkg-config llvmPackages.llvm ];
 
         makeFlags = [
           "CRYSTAL_CONFIG_VERSION=${version}"
@@ -158,7 +158,7 @@ let
 
           install -Dm755 .build/crystal $bin/bin/crystal
           wrapProgram $bin/bin/crystal \
-            --suffix PATH : ${lib.makeBinPath [ pkgconfig llvmPackages.clang which ]} \
+            --suffix PATH : ${lib.makeBinPath [ pkg-config llvmPackages.clang which ]} \
             --suffix CRYSTAL_PATH : lib:$lib/crystal \
             --suffix CRYSTAL_LIBRARY_PATH : ${
               lib.makeLibraryPath (commonBuildInputs extraBuildInputs)