diff --git a/pkgs/development/compilers/dmd/default.nix b/pkgs/development/compilers/dmd/default.nix
index a2c555aa530..4565128f52b 100644
--- a/pkgs/development/compilers/dmd/default.nix
+++ b/pkgs/development/compilers/dmd/default.nix
@@ -109,6 +109,10 @@ stdenv.mkDerivation rec {
     rm dmd/test/runnable/gdb15729.sh
     rm dmd/test/runnable/gdb4149.d
     rm dmd/test/runnable/gdb4181.d
+
+    # Grep'd string changed with gdb 12
+    substituteInPlace druntime/test/exceptions/Makefile \
+      --replace 'in D main (' 'in _Dmain ('
   ''
 
   + lib.optionalString stdenv.isLinux ''