diff --git a/app/src/util/process.h b/app/src/util/process.h
index 17c09bc5..90920620 100644
--- a/app/src/util/process.h
+++ b/app/src/util/process.h
@@ -15,7 +15,7 @@
 // <https://stackoverflow.com/a/44383330/1987178>
 # define SC_PRIsizet "Iu"
 # define SC_PROCESS_NONE NULL
-# define SC_EXIT_CODE_NONE -1u // max value as unsigned
+# define SC_EXIT_CODE_NONE -1UL // max value as unsigned long
   typedef HANDLE sc_pid;
   typedef DWORD sc_exit_code;
   typedef HANDLE sc_pipe;