diff --git a/src/init.c b/src/init.c
index 7a7426f..bfdfd90 100644
--- a/src/init.c
+++ b/src/init.c
@@ -3,6 +3,7 @@
 #include <gsl/gsl_matrix.h>
 #include <stdio.h>
 #include "common.h"
+#include "init.h"
 
 #define MAX_DEPTH 15
 
diff --git a/src/init.h b/src/init.h
index d59e39e..6863160 100644
--- a/src/init.h
+++ b/src/init.h
@@ -1,2 +1,2 @@
 double chi(double b);
-int init(double bmax, double rela_err_limit);
+int init(double bmax, double rela_err_limit, int *size, double *x, double *y);