diff --git a/nptl/tst-tsd3.c b/nptl/tst-tsd3.c
index 0dd39ccb2b..45c7e4e1ea 100644
--- a/nptl/tst-tsd3.c
+++ b/nptl/tst-tsd3.c
@@ -37,7 +37,8 @@ destr1 (void *arg)
     {
       puts ("set key2");
 
-      if (pthread_setspecific (key2, (void *) 1l) != 0)
+      /* Use an arbirary but valid pointer to avoid GCC warnings.  */
+      if (pthread_setspecific (key2, (void *) &left) != 0)
 	{
 	  puts ("destr1: setspecific failed");
 	  exit (1);
@@ -53,7 +54,8 @@ destr2 (void *arg)
     {
       puts ("set key1");
 
-      if (pthread_setspecific (key1, (void *) 1l) != 0)
+      /* Use an arbirary but valid pointer to avoid GCC warnings.  */
+      if (pthread_setspecific (key1, (void *) &left) != 0)
 	{
 	  puts ("destr2: setspecific failed");
 	  exit (1);
@@ -68,8 +70,9 @@ tf (void *arg)
   /* Let the destructors work.  */
   left = 7;
 
-  if (pthread_setspecific (key1, (void *) 1l) != 0
-      || pthread_setspecific (key2, (void *) 1l) != 0)
+  /* Use an arbirary but valid pointer to avoid GCC warnings.  */
+  if (pthread_setspecific (key1, (void *) &left) != 0
+      || pthread_setspecific (key2, (void *) &left) != 0)
     {
       puts ("tf: setspecific failed");
       exit (1);
diff --git a/nptl/tst-tsd4.c b/nptl/tst-tsd4.c
index cc1ada4d4d..f45cf70e37 100644
--- a/nptl/tst-tsd4.c
+++ b/nptl/tst-tsd4.c
@@ -34,7 +34,8 @@ destr (void *arg)
 {
   ++rounds;
 
-  if (pthread_setspecific (key, (void *) 1l) != 0)
+  /* Use an arbirary but valid pointer to avoid GCC warnings.  */
+  if (pthread_setspecific (key, (void *) &rounds) != 0)
     {
       puts ("destr: setspecific failed");
       exit (1);
@@ -45,7 +46,7 @@ destr (void *arg)
 static void *
 tf (void *arg)
 {
-  if (pthread_setspecific (key, (void *) 1l) != 0)
+  if (pthread_setspecific (key, (void *) &rounds) != 0)
     {
       puts ("tf: setspecific failed");
       exit (1);
diff --git a/sysdeps/pthread/tst-key2.c b/sysdeps/pthread/tst-key2.c
index 6828873e41..5662842035 100644
--- a/sysdeps/pthread/tst-key2.c
+++ b/sysdeps/pthread/tst-key2.c
@@ -56,7 +56,7 @@ tf (void *arg)
 {
   pthread_key_t *key = (pthread_key_t *) arg;
 
-  if (pthread_setspecific (*key, (void *) -1l) != 0)
+  if (pthread_setspecific (*key, (void *) arg) != 0)
     {
       write_message ("setspecific failed\n");
       _exit (1);