diff --git a/lapack-netlib/INSTALL/lsametst.c b/lapack-netlib/INSTALL/lsametst.c
index 4b46115fc..631733841 100644
--- a/lapack-netlib/INSTALL/lsametst.c
+++ b/lapack-netlib/INSTALL/lsametst.c
@@ -426,7 +426,7 @@ static integer c__3 = 3;
 /*     December 2016 */
 
 /*  ===================================================================== */
-/* Main program */ main(void)
+/* Main program */ int main(void)
 {
     /* Format strings */
     static char fmt_9999[] = "(\002 *** Error:  LSAME( \002,a1,\002, \002,"
diff --git a/lapack-netlib/INSTALL/secondtst.c b/lapack-netlib/INSTALL/secondtst.c
index 694679bb5..03e7814e9 100644
--- a/lapack-netlib/INSTALL/secondtst.c
+++ b/lapack-netlib/INSTALL/secondtst.c
@@ -422,7 +422,7 @@ static integer c__1000 = 1000;
 
 /* ===================================================================== */
 
-/* Main program */ main(void)
+/* Main program */ int main(void)
 {
     /* Format strings */
     static char fmt_9999[] = "(\002 Time for \002,g10.3,\002 SAXPY ops = "