diff --git a/doc/src/Developer_utils.rst b/doc/src/Developer_utils.rst
index 625ce15202..76e90e17ba 100644
--- a/doc/src/Developer_utils.rst
+++ b/doc/src/Developer_utils.rst
@@ -635,10 +635,10 @@ Tohoku University (under MIT license)
 
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-.. doxygenfunction:: MathEigen::jacobi3(double const *const *mat, double *eval, double **evec)
+.. doxygenfunction:: MathEigen::jacobi3(double const *const *mat, double *eval, double **evec, int sort)
    :project: progguide
 
-.. doxygenfunction:: MathEigen::jacobi3(double const mat[3][3], double *eval, double evec[3][3])
+.. doxygenfunction:: MathEigen::jacobi3(double const mat[3][3], double *eval, double evec[3][3], int sort)
    :project: progguide
 
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