5 files changed, 5 insertions, 5 deletions
diff --git a/pkgs/tools/misc/coreutils/default.nix b/pkgs/tools/misc/coreutils/default.nix
index a89621e8fe5..29870d680b2 100644
--- a/pkgs/tools/misc/coreutils/default.nix
+++ b/pkgs/tools/misc/coreutils/default.nix
@@ -149,7 +149,7 @@ stdenv.mkDerivation rec {
 
   NIX_LDFLAGS = optionalString selinuxSupport "-lsepol";
   FORCE_UNSAFE_CONFIGURE = optionalString stdenv.hostPlatform.isSunOS "1";
-  NIX_CFLAGS_COMPILE = []
+  NIX_CFLAGS_COMPILE = toString []
     # Work around a bogus warning in conjunction with musl.
     ++ optional stdenv.hostPlatform.isMusl "-Wno-error"
     ++ optional stdenv.hostPlatform.isAndroid "-D__USE_FORTIFY_LEVEL=0";
diff --git a/pkgs/tools/misc/lockfile-progs/default.nix b/pkgs/tools/misc/lockfile-progs/default.nix
index 8fdee47befb..43f1a0967c7 100644
--- a/pkgs/tools/misc/lockfile-progs/default.nix
+++ b/pkgs/tools/misc/lockfile-progs/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ liblockfile ];
 
-  NIX_CFLAGS_COMPILE = [
+  NIX_CFLAGS_COMPILE = toString [
     # Needed with GCC 12
     "-Wno-error=format-overflow"
   ];
diff --git a/pkgs/tools/misc/pipelight/default.nix b/pkgs/tools/misc/pipelight/default.nix
index 9cabb74b231..2f70ea677b6 100644
--- a/pkgs/tools/misc/pipelight/default.nix
+++ b/pkgs/tools/misc/pipelight/default.nix
@@ -19,7 +19,7 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [ wine_custom libX11 libGLU libGL curl ];
 
-  NIX_CFLAGS_COMPILE = [ "-fpermissive" ];
+  NIX_CFLAGS_COMPILE = toString [ "-fpermissive" ];
 
   patches = [
     ./pipelight.patch
diff --git a/pkgs/tools/misc/shim/default.nix b/pkgs/tools/misc/shim/default.nix
index a988d496276..9bb7c59c7b7 100644
--- a/pkgs/tools/misc/shim/default.nix
+++ b/pkgs/tools/misc/shim/default.nix
@@ -24,7 +24,7 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [ elfutils ];
 
-  NIX_CFLAGS_COMPILE = [ "-I${toString elfutils.dev}/include" ];
+  NIX_CFLAGS_COMPILE = toString [ "-I${toString elfutils.dev}/include" ];
 
   makeFlags =
     lib.optional (vendorCertFile != null) "VENDOR_CERT_FILE=${vendorCertFile}"
diff --git a/pkgs/tools/misc/wimboot/default.nix b/pkgs/tools/misc/wimboot/default.nix
index 267272b0b66..c6fd76d0966 100644
--- a/pkgs/tools/misc/wimboot/default.nix
+++ b/pkgs/tools/misc/wimboot/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libbfd zlib libiberty ];
   makeFlags = [ "wimboot.x86_64.efi" ];
 
-  NIX_CFLAGS_COMPILE = [
+  NIX_CFLAGS_COMPILE = toString [
     # Needed with GCC 12
     "-Wno-error=array-bounds"
   ];