diff --git a/nixos/modules/hardware/video/nvidia.nix b/nixos/modules/hardware/video/nvidia.nix
index 6de5b99a1ee6..c7c440bea19c 100644
--- a/nixos/modules/hardware/video/nvidia.nix
+++ b/nixos/modules/hardware/video/nvidia.nix
@@ -68,7 +68,7 @@ in
     };
 
     hardware.nvidia.prime.nvidiaBusId = mkOption {
-      type = types.str;
+      type = types.strMatching "[[:print:]]+\:[0-9]{1,3}\:[0-9]{1,2}\:[0-9]";
       default = "";
       example = "PCI:1:0:0";
       description = ''
@@ -78,7 +78,7 @@ in
     };
 
     hardware.nvidia.prime.intelBusId = mkOption {
-      type = types.str;
+      type = types.strMatching "[[:print:]]+\:[0-9]{1,3}\:[0-9]{1,2}\:[0-9]";
       default = "";
       example = "PCI:0:2:0";
       description = ''
@@ -88,7 +88,7 @@ in
     };
 
     hardware.nvidia.prime.amdgpuBusId = mkOption {
-      type = types.str;
+      type = types.strMatching "[[:print:]]+\:[0-9]{1,3}\:[0-9]{1,2}\:[0-9]";
       default = "";
       example = "PCI:4:0:0";
       description = ''