diff --git a/builder.py b/builder.py
index 457af69c..c3010faf 100755
--- a/builder.py
+++ b/builder.py
@@ -558,6 +558,12 @@ class CPUDependentFreeBSDPathComposer(FreeBSDPathComposer):
         path = mapCPUDependentPath(path)
         return path
 
+class CPUDependentRTEMSPathComposer(RTEMSPathComposer):
+    def composeLibBSDPath(self, path, prefix):
+        path = super(CPUDependentRTEMSPathComposer, self).composeLibBSDPath(path, prefix)
+        path = mapCPUDependentPath(path)
+        return path
+
 class CPUDependentLinuxPathComposer(LinuxPathComposer):
     def composeLibBSDPath(self, path, prefix):
         path = super(CPUDependentLinuxPathComposer, self).composeLibBSDPath(path, prefix)
@@ -735,6 +741,15 @@ class Module:
                               FromRTEMSToFreeBSDSourceConverter(), assertSourceFile,
                               sourceFileFragmentComposer)
 
+    def addCPUDependentRTEMSSourceFiles(self, cpus, files, sourceFileFragmentComposer):
+        for cpu in cpus:
+            self.initCPUDependencies(cpu)
+            self.cpuDependentSourceFiles[cpu] += \
+                self.addFiles(files,
+                              CPUDependentRTEMSPathComposer(), NoConverter(),
+                              NoConverter(), assertSourceFile,
+                              sourceFileFragmentComposer)
+
     def addCPUDependentLinuxSourceFiles(self, cpus, files, sourceFileFragmentComposer):
         for cpu in cpus:
             self.initCPUDependencies(cpu)