1 files changed, 4 insertions, 0 deletions
diff --git a/src/Common/src/Interop/Unix/System.Private.CoreLib.Native/Interop.Number.cs b/src/Common/src/Interop/Unix/System.Private.CoreLib.Native/Interop.Number.cs
index 4fba126b2..e9066eb64 100644
--- a/src/Common/src/Interop/Unix/System.Private.CoreLib.Native/Interop.Number.cs
+++ b/src/Common/src/Interop/Unix/System.Private.CoreLib.Native/Interop.Number.cs
@@ -10,7 +10,11 @@ internal static partial class Interop
 {
     internal unsafe partial class Sys
     {
+#if !MONO
         [DllImport(Interop.Libraries.CoreLibNative, EntryPoint = "CoreLibNative_DoubleToString")]
+#else
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+#endif
         internal static extern unsafe int DoubleToString(double value, byte* format, byte* buffer, int bufferLength);
     }
 }