diff --git a/PckStudio.Core/PckStudio.Core.csproj b/PckStudio.Core/PckStudio.Core.csproj
index 31f598eb..7adf9aa9 100644
--- a/PckStudio.Core/PckStudio.Core.csproj
+++ b/PckStudio.Core/PckStudio.Core.csproj
@@ -6,6 +6,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{345EABED-F0D1-4D04-B409-BABDEF747352}</ProjectGuid>
     <OutputType>Library</OutputType>
+    <DefineConstants Condition="'$(Configuration)' != 'Debug'">NDEBUG</DefineConstants>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>PckStudio.Core</RootNamespace>
     <AssemblyName>PckStudio.Core</AssemblyName>
diff --git a/PckStudio.Rendering/PckStudio.Rendering.csproj b/PckStudio.Rendering/PckStudio.Rendering.csproj
index 07ced4c6..3e83c5d7 100644
--- a/PckStudio.Rendering/PckStudio.Rendering.csproj
+++ b/PckStudio.Rendering/PckStudio.Rendering.csproj
@@ -6,6 +6,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{B1E19D0F-6DD5-4D91-9B45-9818759CA8EF}</ProjectGuid>
     <OutputType>Library</OutputType>
+	<DefineConstants Condition="'$(Configuration)' != 'Debug'">NDEBUG</DefineConstants>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>PckStudio.Rendering</RootNamespace>
     <AssemblyName>PckStudio.Rendering</AssemblyName>
diff --git a/PckStuido.ModelSupport/PckStuido.ModelSupport.csproj b/PckStuido.ModelSupport/PckStuido.ModelSupport.csproj
index 487c590a..72b6fa34 100644
--- a/PckStuido.ModelSupport/PckStuido.ModelSupport.csproj
+++ b/PckStuido.ModelSupport/PckStuido.ModelSupport.csproj
@@ -6,6 +6,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{43BCACD7-5405-4499-9B45-E1435AC03C26}</ProjectGuid>
     <OutputType>Library</OutputType>
+	<DefineConstants Condition="'$(Configuration)' != 'Debug'">NDEBUG</DefineConstants>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>PckStuido.ModelSupport</RootNamespace>
     <AssemblyName>PckStuido.ModelSupport</AssemblyName>