diff --git a/Prebuild/src/Core/Targets/MonoDevelopTarget.cs b/Prebuild/src/Core/Targets/MonoDevelopTarget.cs
index af3341fe88..5a5dc5526d 100644
--- a/Prebuild/src/Core/Targets/MonoDevelopTarget.cs
+++ b/Prebuild/src/Core/Targets/MonoDevelopTarget.cs
@@ -245,7 +245,7 @@ namespace Prebuild.Core.Targets
 					ss.WriteLine(" />");
 					
 					ss.Write("      <Execution");
-					ss.Write(" runwithwarnings=\"True\"");
+					ss.Write(" runwithwarnings=\"{0}\"", !conf.Options.WarningsAsErrors);
 					ss.Write(" consolepause=\"True\"");
 					ss.Write(" runtime=\"{0}\"", netRuntime);
                     ss.Write(" clr-version=\"Net_2_0\"");
diff --git a/Prebuild/src/Core/Targets/NAntTarget.cs b/Prebuild/src/Core/Targets/NAntTarget.cs
index 6ee6aef00e..dfb1ce3e33 100644
--- a/Prebuild/src/Core/Targets/NAntTarget.cs
+++ b/Prebuild/src/Core/Targets/NAntTarget.cs
@@ -283,6 +283,11 @@ namespace Prebuild.Core.Targets
                     break;
                 }
                 foreach (ConfigurationNode conf in project.Configurations)
+                {
+                    ss.Write(" warnaserror=\"{0}\"", conf.Options.WarningsAsErrors);
+                    break;
+                }
+                foreach (ConfigurationNode conf in project.Configurations)
                 {
                     ss.Write(" define=\"{0}\"", conf.Options.CompilerDefines);
                     break;
diff --git a/bin/Prebuild.exe b/bin/Prebuild.exe
index 621128f74f..e7dee96687 100755
Binary files a/bin/Prebuild.exe and b/bin/Prebuild.exe differ