diff --git a/cmd/snap-confine/snap-confine.c b/cmd/snap-confine/snap-confine.c
index 5af4bf5fa92..4e359d06d79 100644
--- a/cmd/snap-confine/snap-confine.c
+++ b/cmd/snap-confine/snap-confine.c
@@ -21,6 +21,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <glob.h>
+#include <inttypes.h>
 #include <sched.h>
 #include <signal.h>
 #include <stdbool.h>
@@ -277,8 +278,8 @@ static void log_startup_stage(const char *stage) {
     }
     struct timeval tv;
     gettimeofday(&tv, NULL);
-    debug("-- snap startup {\"stage\":\"%s\", \"time\":\"%lld.%06lld\"}", stage, (long long int)tv.tv_sec,
-          (long long int)tv.tv_usec);
+    debug("-- snap startup {\"stage\":\"%s\", \"time\":\"%" PRId64 ".%06" PRId64 "\"}", stage, (int64_t)tv.tv_sec,
+          (int64_t)tv.tv_usec);
 }
 
 /**