diff --git a/pkgs/development/compilers/openjdk/openjfx/12.nix b/pkgs/development/compilers/openjdk/openjfx/12.nix
index 418c58ac683..356ac4800d9 100644
--- a/pkgs/development/compilers/openjdk/openjfx/12.nix
+++ b/pkgs/development/compilers/openjdk/openjfx/12.nix
@@ -83,6 +83,9 @@ in makePackage {
     cp -r build/modular-sdk $out
   '';
 
+  # glib-2.62 deprecations
+  NIX_CFLAGS_COMPILE = [ "-DGLIB_DISABLE_DEPRECATION_WARNINGS" ];
+
   stripDebugList = [ "." ];
 
   postFixup = ''