diff --git a/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix b/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
index f5cad9f4bf7a..077c52be3735 100644
--- a/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
+++ b/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
@@ -23,6 +23,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkg-config
     autoreconfHook
+    mono # gmcs
   ];
   buildInputs = [
     mono
diff --git a/pkgs/development/libraries/dbus-sharp-glib/default.nix b/pkgs/development/libraries/dbus-sharp-glib/default.nix
index 9e5762e6cd52..538a14597b10 100644
--- a/pkgs/development/libraries/dbus-sharp-glib/default.nix
+++ b/pkgs/development/libraries/dbus-sharp-glib/default.nix
@@ -23,6 +23,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkg-config
     autoreconfHook
+    mono # gmcs
   ];
   buildInputs = [
     mono
diff --git a/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix b/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix
index 55a9ddbc727c..e949ebb05fe5 100644
--- a/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix
+++ b/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix
@@ -22,6 +22,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkg-config
     autoreconfHook
+    mono # gmcs
   ];
   buildInputs = [ mono ];
 
diff --git a/pkgs/development/libraries/dbus-sharp/default.nix b/pkgs/development/libraries/dbus-sharp/default.nix
index ba20951653eb..31bb564d3a5a 100644
--- a/pkgs/development/libraries/dbus-sharp/default.nix
+++ b/pkgs/development/libraries/dbus-sharp/default.nix
@@ -22,6 +22,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkg-config
     autoreconfHook
+    mono4 # gmcs
   ];
 
   # Use msbuild when https://github.com/NixOS/nixpkgs/pull/43680 is merged