diff --git a/Prebuild/src/Core/Targets/NAntTarget.cs b/Prebuild/src/Core/Targets/NAntTarget.cs
index dfb1ce3e33..c4eae7c8db 100644
--- a/Prebuild/src/Core/Targets/NAntTarget.cs
+++ b/Prebuild/src/Core/Targets/NAntTarget.cs
@@ -379,6 +379,9 @@ namespace Prebuild.Core.Targets
                         ss.WriteLine("            <fileset basedir=\"${project::get-base-directory()}/${build.dir}/\" >");
                         ss.WriteLine("                <include name=\"*.dll\"/>");
                         ss.WriteLine("                <include name=\"*.exe\"/>");
+                        ss.WriteLine("                <if test=\"${build.debug=='true'}\">");
+                        ss.WriteLine("                  <include name=\"*.mdb\"/>");
+                        ss.WriteLine("                </if>");
                         ss.WriteLine("            </fileset>");
                         ss.WriteLine("        </copy>");
                         break;
diff --git a/bin/Prebuild.exe b/bin/Prebuild.exe
index e7dee96687..bbef8aedd7 100755
Binary files a/bin/Prebuild.exe and b/bin/Prebuild.exe differ