diff --git a/pkgs/development/compilers/graalvm/community-edition/mkGraal.nix b/pkgs/development/compilers/graalvm/community-edition/mkGraal.nix
index be4a0dc6dabe..5b20890ced1b 100644
--- a/pkgs/development/compilers/graalvm/community-edition/mkGraal.nix
+++ b/pkgs/development/compilers/graalvm/community-edition/mkGraal.nix
@@ -45,7 +45,7 @@ let
   version = platform.version or defaultVersion;
   name = "graalvm${javaVersion}-ce";
   sourcesFilename = "${name}-sources.json";
-  sources = builtins.fromJSON (builtins.readFile (./${sourcesFilename}));
+  sources = builtins.fromJSON (builtins.readFile (./. + "/${sourcesFilename}"));
 
   runtimeLibraryPath = lib.makeLibraryPath
     ([ cups ] ++ lib.optionals gtkSupport [ cairo glib gtk3 ]);
diff --git a/pkgs/development/compilers/graalvm/community-edition/update.nix b/pkgs/development/compilers/graalvm/community-edition/update.nix
index 42c128cb4fba..191f3cb45a15 100644
--- a/pkgs/development/compilers/graalvm/community-edition/update.nix
+++ b/pkgs/development/compilers/graalvm/community-edition/update.nix
@@ -184,7 +184,7 @@ let
 
   newVersion = getLatestVersion graalVersion;
   sourcesJson = genSources javaVersion defaultVersion config;
-  sourcesJsonPath = lib.strings.escapeShellArg ./${sourcesFilename};
+  sourcesJsonPath = lib.strings.escapeShellArg ./. + "/${sourcesFilename}";
 
   # versionKeyInDefaultNix String -> String
   versionKeyInDefaultNix = graalVersion: