diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 0d61a3dd8..18a78941d 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -1046,7 +1046,7 @@ const char* cmake::GetHomeOutputDirectory() const
   return this->State->GetBinaryDirectory();
 }
 
-std::string cmake::FindCacheFile(const std::string& binaryDir) const
+std::string cmake::FindCacheFile(const std::string& binaryDir)
 {
   std::string cachePath = binaryDir;
   cmSystemTools::ConvertToUnixSlashes(cachePath);
diff --git a/Source/cmake.h b/Source/cmake.h
index 30661d9fa..6095a59ae 100644
--- a/Source/cmake.h
+++ b/Source/cmake.h
@@ -194,7 +194,7 @@ public:
   }
 
   ///! Return the full path to where the CMakeCache.txt file should be.
-  std::string FindCacheFile(const std::string& binaryDir) const;
+  static std::string FindCacheFile(const std::string& binaryDir);
 
   ///! Return the global generator assigned to this instance of cmake
   void SetGlobalGenerator(cmGlobalGenerator*);