diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 0ac3e93..4ede29f 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -401,7 +401,7 @@
 // 2. send a SIGUSR1 to its pid which will dump anrd's trace.
 // 3. wait until the trace generation completes and add to the zip file.
 static bool dump_anrd_trace() {
-    unsigned int pid;
+    int pid;
     char buf[50], path[PATH_MAX];
     struct dirent *trace;
     struct stat st;
@@ -428,7 +428,7 @@
         }
 
         // send SIGUSR1 to the anrd to generate a trace.
-        sprintf(buf, "%u", pid);
+        sprintf(buf, "%d", pid);
         if (RunCommand("ANRD_DUMP", {"kill", "-SIGUSR1", buf},
                        CommandOptions::WithTimeout(1).Build())) {
             MYLOGE("anrd signal timed out. Please manually collect trace\n");