diff --git a/Solver/eigenSolver.h b/Solver/eigenSolver.h
index a58deb308fb4f745893db64f133925b78e90efd5..709cd60b06c43cfca02aa789fe3e6c0826e19c4c 100644
--- a/Solver/eigenSolver.h
+++ b/Solver/eigenSolver.h
@@ -3,8 +3,8 @@
 // See the LICENSE.txt file for license information. Please report all
 // bugs and problems to <gmsh@geuz.org>.
 
-#ifndef _EIGEN_SOLVE_H_
-#define _EIGEN_SOLVE_H_
+#ifndef _EIGEN_SOLVER_H_
+#define _EIGEN_SOLVER_H_
 
 #include <string>
 #include <complex>