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-rw-r--r--src/newgrf.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index e398edbb8..6f989e3a5 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -5129,7 +5129,7 @@ static void CfgApply(ByteReader *buf)
uint32 value = GetParamVal(param_num + i / 4, NULL);
/* Reset carry flag for each iteration of the variable (only really
* matters if param_size is greater than 4) */
- if (i == 0) carry = false;
+ if (i % 4 == 0) carry = false;
if (add_value) {
uint new_value = preload_sprite[offset + i] + GB(value, (i % 4) * 8, 8) + (carry ? 1 : 0);