diff --git a/include/aspect/material_model/reaction_model/grain_size_evolution.h b/include/aspect/material_model/reaction_model/grain_size_evolution.h
index 97ab3373850..3ab45dad3e2 100644
--- a/include/aspect/material_model/reaction_model/grain_size_evolution.h
+++ b/include/aspect/material_model/reaction_model/grain_size_evolution.h
@@ -18,8 +18,8 @@
   <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _aspect_material_model_reaction_grain_size_evolution_h
-#define _aspect_material_model_reaction_grain_size_evolution_h
+#ifndef _aspect_material_model_reaction_model_grain_size_evolution_h
+#define _aspect_material_model_reaction_model_grain_size_evolution_h
 
 #include <aspect/material_model/interface.h>
 #include <aspect/simulator_access.h>
diff --git a/include/aspect/material_model/reaction_model/katz2003_mantle_melting.h b/include/aspect/material_model/reaction_model/katz2003_mantle_melting.h
index 4dd490a7dac..8c7fa2068b4 100644
--- a/include/aspect/material_model/reaction_model/katz2003_mantle_melting.h
+++ b/include/aspect/material_model/reaction_model/katz2003_mantle_melting.h
@@ -18,8 +18,8 @@
   <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _aspect_material_reaction_melt_katz2003_mantle_melting_h
-#define _aspect_material_reaction_melt_katz2003_mantle_melting_h
+#ifndef _aspect_material_model_reaction_model_katz2003_mantle_melting_h
+#define _aspect_material_model_reaction_model_katz2003_mantle_melting_h
 
 #include <aspect/material_model/interface.h>
 #include <aspect/simulator_access.h>