diff --git a/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix b/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
index 8c6db5ecd8c9..6e3fe6c4ebf1 100644
--- a/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
+++ b/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
@@ -48,8 +48,10 @@ in
 
 let result = stdenv.mkDerivation rec {
   name = if sourcePerArch.packageType == "jdk"
-    then "adoptopenjdk-${sourcePerArch.vmType}-bin-${sourcePerArch.${cpuName}.version}"
-    else "adoptopenjdk-${sourcePerArch.packageType}-${sourcePerArch.vmType}-bin-${sourcePerArch.${cpuName}.version}";
+    then "adoptopenjdk-${sourcePerArch.vmType}-bin-${version}"
+    else "adoptopenjdk-${sourcePerArch.packageType}-${sourcePerArch.vmType}-bin-${version}";
+
+  version = sourcePerArch.${cpuName}.version or (throw "unsupported CPU ${cpuName}");
 
   src = fetchurl {
     inherit (sourcePerArch.${cpuName}) url sha256;