diff --git a/test/amg.c b/test/amg.c
index 18811ea..b291188 100644
--- a/test/amg.c
+++ b/test/amg.c
@@ -32,6 +32,7 @@
 
 #include "HYPRE_IJ_mv.h"
 #include "HYPRE_parcsr_ls.h"
+#include "_hypre_parcsr_ls.h"
 #include "_hypre_parcsr_mv.h"
 #include "HYPRE_krylov.h"