diff --git a/main.c b/main.c
index 29ceb98..d24960c 100644
--- a/main.c
+++ b/main.c
@@ -62,6 +62,7 @@ char** argdup(int argc, const char** argv)
 
 int main(int argc, const char** argv)
 {
+  int err;
   if (argc == 1)
     {
       printf("Usage: pidjail PROGRAM ARGUMENTS...\n"
@@ -72,7 +73,7 @@ int main(int argc, const char** argv)
   // next fork shall be in a new pid namespace
   if (unshare(CLONE_NEWPID) != 0)
     {
-      int err = errno;
+      err = errno;
       printf("Failed to unshare pid namespace (%d)\n", err);
       return err;
     }
@@ -102,7 +103,7 @@ int main(int argc, const char** argv)
       int status;
       if (waitpid(pid, &status, 0) == -1)
         {
-          int err = errno;
+          err = errno;
           printf("Failed to wait (%d)\n", err);
           return err;
         }
@@ -123,7 +124,6 @@ int main(int argc, const char** argv)
           pid_t first_child = pid;
           pid_t exited_child;
           int child_status;
-          int err;
 
           // Setup forward for SIGTERM
           pid_child = first_child;
@@ -157,8 +157,8 @@ int main(int argc, const char** argv)
 
           if (execvp(newargs[0], newargs) == -1)
             {
-              printf("Failed to exec (%d)\n", errno);
-              return errno;
+              printf("Failed to exec (%d)\n", err);
+              return err;
             }
         }
     }