diff --git a/src/gmp/acinclude.m4 b/src/gmp/acinclude.m4
index d05322870..1492cd07a 100644
--- a/src/gmp/acinclude.m4
+++ b/src/gmp/acinclude.m4
@@ -3768,7 +3768,7 @@ AC_CACHE_CHECK([whether build system compiler is ANSI],
                gmp_cv_c_for_build_ansi,
 [cat >conftest.c <<EOF
 int
-main (int argc, char *argv[])
+main (int argc, char **argv)
 {
   exit(0);
 }
diff --git a/src/gmp/configure b/src/gmp/configure
index b35f3f3ad..41c0736e4 100755
--- a/src/gmp/configure
+++ b/src/gmp/configure
@@ -9209,7 +9209,7 @@ if ${gmp_cv_c_for_build_ansi+:} false; then :
 else
   cat >conftest.c <<EOF
 int
-main (int argc, char *argv)
+main (int argc, char **argv)
 {
   exit(0);
 }