diff --git a/ProcessLib/GroundwaterFlow.h b/ProcessLib/GroundwaterFlowProcess.h
similarity index 91%
rename from ProcessLib/GroundwaterFlow.h
rename to ProcessLib/GroundwaterFlowProcess.h
index 1c79d7e3566f6cfba4b351b69130759d0096b911..1d4e8c58ac4bf1d1ecd0e293be4e2d7e58d80c25 100644
--- a/ProcessLib/GroundwaterFlow.h
+++ b/ProcessLib/GroundwaterFlowProcess.h
@@ -7,8 +7,8 @@
  *
  */
 
-#ifndef PROCESS_LIB_GROUNDWATERFLOW_H_
-#define PROCESS_LIB_GROUNDWATERFLOW_H_
+#ifndef PROCESS_LIB_GROUNDWATERFLOWPROCESS_H_
+#define PROCESS_LIB_GROUNDWATERFLOWPROCESS_H_
 
 #include <boost/property_tree/ptree.hpp>
 #include "logog/include/logog.hpp"
@@ -63,4 +63,4 @@ private:
 
 }   // namespace ProcessLib
 
-#endif  // PROCESS_LIB_GROUNDWATERFLOW_H_
+#endif  // PROCESS_LIB_GROUNDWATERFLOWPROCESS_H_
diff --git a/ProcessLib/Process.h b/ProcessLib/Process.h
index b76b93d2d9e20aa1c357f924f948cdb0d6878dc3..753b27d5db406c736378f6991cfba77226a72269 100644
--- a/ProcessLib/Process.h
+++ b/ProcessLib/Process.h
@@ -36,6 +36,6 @@ protected:
 //
 // Include all known processes here.
 //
-#include "GroundwaterFlow.h"
+#include "GroundwaterFlowProcess.h"
 
 #endif  // PROCESS_LIB_PROCESS_H_