diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6a50e92905be..23b21906534c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-25  Thomas Preud'homme  <thomas.preudhomme@linaro.org>
+
+	* gcc.dg/sibcall-9.c: Make v static.
+	* gcc.dg/sibcall-10.c: Likewise.
+
 2018-10-25  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/87665
diff --git a/gcc/testsuite/gcc.dg/sibcall-10.c b/gcc/testsuite/gcc.dg/sibcall-10.c
index 54cc604aecf6..4acca50e3e4f 100644
--- a/gcc/testsuite/gcc.dg/sibcall-10.c
+++ b/gcc/testsuite/gcc.dg/sibcall-10.c
@@ -31,7 +31,7 @@ extern void exit (int);
 static ATTR void recurser_void1 (void);
 static ATTR void recurser_void2 (void);
 extern void track (void);
-volatile int v;
+static volatile int v;
 
 int n = 0;
 int main ()
diff --git a/gcc/testsuite/gcc.dg/sibcall-9.c b/gcc/testsuite/gcc.dg/sibcall-9.c
index fc3bd9dcf162..32b2e1d5d614 100644
--- a/gcc/testsuite/gcc.dg/sibcall-9.c
+++ b/gcc/testsuite/gcc.dg/sibcall-9.c
@@ -31,7 +31,7 @@ extern void exit (int);
 static ATTR void recurser_void1 (int);
 static ATTR void recurser_void2 (int);
 extern void track (int);
-volatile int v;
+static volatile int v;
 
 int main ()
 {