diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 9387d56a9a55..d350e6770ef6 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,11 @@
+2017-12-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR testsuite/83281
+	* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c (main): Use
+	j suffix instead of i.
+	* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c (main):
+	Likewise.
+
 2017-12-01  Cesar Philippidis  <cesar@codesourcery.com>
 
 	* testsuite/libgomp.oacc-c-c++-common/data-2-lib.c: Add missing
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c
index 351e24091163..8fd4db97cb64 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c
@@ -99,7 +99,7 @@ int main (void)
     {
       double frac = ix * (1.0 / 1024) + 1.0;
       
-      ary[ix] = frac + frac * 2.0i - 1.0i;
+      ary[ix] = frac + frac * 2.0j - 1.0j;
       sum += ary[ix];
       prod *= ary[ix];
     }
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c
index 2e6feba25d0f..f7cc1f25278c 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c
@@ -99,7 +99,7 @@ int main (void)
     {
       float frac = ix * (1.0f / 1024) + 1.0f;
       
-      ary[ix] = frac + frac * 2.0i - 1.0i;
+      ary[ix] = frac + frac * 2.0j - 1.0j;
       sum += ary[ix];
       prod *= ary[ix];
     }