diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 56fe02835..9a1f7ef4b 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -601,7 +601,7 @@ bool cmMakefile::ReadListFile(const char* listfile,
   return res;
 }
 
-bool cmMakefile::ReadListFileInternal(cmListFile const& cacheFile,
+void cmMakefile::ReadListFileInternal(cmListFile const& cacheFile,
                                       const char* filenametoread,
                                       bool noPolicyScope)
 {
@@ -633,8 +633,6 @@ bool cmMakefile::ReadListFileInternal(cmListFile const& cacheFile,
       }
     }
   }
-
-  return true;
 }
 
 //----------------------------------------------------------------------------
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 0c41268bb..5927be1e7 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -918,7 +918,7 @@ private:
                     bool noPolicyScope,
                     bool requireProjectCommand);
 
-  bool ReadListFileInternal(cmListFile const& cacheFile,
+  void ReadListFileInternal(cmListFile const& cacheFile,
                             const char* filenametoread,
                             bool noPolicyScope);