diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
index e19b0699a33f..a4324e918b4d 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
@@ -11,6 +11,7 @@ let
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
+  pname = "linux-rt";
 
   # modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
   modDirVersion = lib.versions.pad 3 version;
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
index 5e43eca364d4..47634d116e9a 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
@@ -11,6 +11,7 @@ let
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
+  pname = "linux-rt";
 
   # modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
   modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
index 463385036292..2fc18c76e570 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
@@ -11,6 +11,7 @@ let
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
+  pname = "linux-rt";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
index ac0f7d6d9d88..981a36574aaa 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
@@ -11,6 +11,7 @@ let
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
+  pname = "linux-rt";
 
   # modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
   modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix b/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
index 5a2e8959090f..e8265adb0009 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
@@ -11,6 +11,7 @@ let
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
+  pname = "linux-rt";
 
   # modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
   modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version