diff --git a/src/core/IronPython.Modules/NtSignalState.cs b/src/core/IronPython.Modules/signal.NtSignalState.cs
similarity index 100%
rename from src/core/IronPython.Modules/NtSignalState.cs
rename to src/core/IronPython.Modules/signal.NtSignalState.cs
diff --git a/src/core/IronPython.Modules/SimpleSignalState.cs b/src/core/IronPython.Modules/signal.SimpleSignalState.cs
similarity index 100%
rename from src/core/IronPython.Modules/SimpleSignalState.cs
rename to src/core/IronPython.Modules/signal.SimpleSignalState.cs