diff --git a/src/Managed/Precision.cs b/src/Managed/Precision.cs
index 2b02029c..a4c93101 100644
--- a/src/Managed/Precision.cs
+++ b/src/Managed/Precision.cs
@@ -618,6 +618,7 @@ namespace MathNet.Numerics
         /// <exception cref="ArgumentOutOfRangeException">
         ///     Thrown if <paramref name="b"/> is <c>double.NaN</c>.
         /// </exception>
+        [CLSCompliant(false)]
         public static ulong NumbersBetween(this double a, double b)
         {
             if (double.IsNaN(a) || double.IsInfinity(a))
diff --git a/src/Managed/Properties/AssemblyInfo.cs b/src/Managed/Properties/AssemblyInfo.cs
index 95d96bb1..b0a5da2e 100644
--- a/src/Managed/Properties/AssemblyInfo.cs
+++ b/src/Managed/Properties/AssemblyInfo.cs
@@ -26,6 +26,7 @@
 // OTHER DEALINGS IN THE SOFTWARE.
 // </copyright>
 
+using System;
 using System.Reflection;
 using System.Resources;
 using System.Runtime.InteropServices;
@@ -38,6 +39,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCopyright("Copyright © Math.NET Project")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
+[assembly: CLSCompliant(true)]
 [assembly: ComVisible(false)]
 [assembly: Guid("7b66646f-f0ee-425d-9065-910d1937a2df")]
 [assembly: AssemblyVersion("1.0.0.0")]
diff --git a/src/Native/Properties/AssemblyInfo.cs b/src/Native/Properties/AssemblyInfo.cs
index 98db3a4c..8440e4b7 100644
--- a/src/Native/Properties/AssemblyInfo.cs
+++ b/src/Native/Properties/AssemblyInfo.cs
@@ -26,6 +26,7 @@
 // OTHER DEALINGS IN THE SOFTWARE.
 // </copyright>
 
+using System;
 using System.Reflection;
 using System.Resources;
 using System.Runtime.InteropServices;
@@ -38,6 +39,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCopyright("Copyright © Math.NET Project")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
+[assembly: CLSCompliant(true)]
 [assembly: ComVisible(false)]
 [assembly: Guid("2b6a14a7-2aee-4bdc-a95a-2f496fe06cb7")]
 [assembly: AssemblyVersion("1.0.0.0")]