diff --git a/arch/sim/include/limits.h b/arch/sim/include/limits.h
index d0637e2f206..4ed797d0f8b 100644
--- a/arch/sim/include/limits.h
+++ b/arch/sim/include/limits.h
@@ -74,9 +74,9 @@
 #  define LONG_MAX   2147483647L
 #  define ULONG_MAX  4294967295UL
 #else
-#  define LONG_MIN   (-LLONG_MAX - 1)
-#  define LONG_MAX   9223372036854775807LL
-#  define ULONG_MAX  18446744073709551615ULL
+#  define LONG_MIN   (-LONG_MAX - 1)
+#  define LONG_MAX   9223372036854775807L
+#  define ULONG_MAX  18446744073709551615UL
 #endif
 
 #define LLONG_MIN    (-LLONG_MAX - 1)