1 files changed, 6 insertions, 5 deletions

diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c
index 13bddd5427bd..f1ac2dae999e 100644
--- a/Documentation/ptp/testptp.c
+++ b/Documentation/ptp/testptp.c
@@ -19,6 +19,7 @@
  */
 #include <errno.h>
 #include <fcntl.h>
+#include <inttypes.h>
 #include <math.h>
 #include <signal.h>
 #include <stdio.h>
@@ -496,14 +497,14 @@ int main(int argc, char *argv[])
                         interval = t2 - t1;
                         offset = (t2 + t1) / 2 - tp;
 
-                        printf("system time: %ld.%ld\n",
+                        printf("system time: %" PRId64 ".%u\n",
                                 (pct+2*i)->sec, (pct+2*i)->nsec);
-                        printf("phc    time: %ld.%ld\n",
+                        printf("phc    time: %" PRId64 ".%u\n",
                                 (pct+2*i+1)->sec, (pct+2*i+1)->nsec);
-                        printf("system time: %ld.%ld\n",
+                        printf("system time: %" PRId64 ".%u\n",
                                 (pct+2*i+2)->sec, (pct+2*i+2)->nsec);
-                        printf("system/phc clock time offset is %ld ns\n"
-                                "system     clock time delay  is %ld ns\n",
+                        printf("system/phc clock time offset is %" PRId64 " ns\n"
+                               "system     clock time delay  is %" PRId64 " ns\n",
                                 offset, interval);
                 }