diff --git a/src/pokemon.c b/src/pokemon.c
index 0a47ebf7bc..2b731ef13c 100644
--- a/src/pokemon.c
+++ b/src/pokemon.c
@@ -1206,7 +1206,8 @@ void CreateBoxMon(struct BoxPokemon *boxMon, u16 species, u8 level, u8 fixedIV,
     else
     {
         u32 iv;
-        value = Random();
+        u32 ivRandom = Random32();
+        value = (u16)ivRandom;
 
         iv = value & MAX_IV_MASK;
         SetBoxMonData(boxMon, MON_DATA_HP_IV, &iv);
@@ -1215,7 +1216,7 @@ void CreateBoxMon(struct BoxPokemon *boxMon, u16 species, u8 level, u8 fixedIV,
         iv = (value & (MAX_IV_MASK << 10)) >> 10;
         SetBoxMonData(boxMon, MON_DATA_DEF_IV, &iv);
 
-        value = Random();
+        value = (u16)(ivRandom >> 16);
 
         iv = value & MAX_IV_MASK;
         SetBoxMonData(boxMon, MON_DATA_SPEED_IV, &iv);