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-rw-r--r--ext/bigdecimal/bigdecimal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 7b23826ac1..f8de8aa5d1 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -1201,7 +1201,7 @@ BigDecimal_pai(VALUE self, VALUE nFig)
Real *pv;
S_LONG mf;
- mf = GetPositiveInt(nFig);
+ mf = GetPositiveInt(nFig)+VpBaseFig()-1;
GUARD_OBJ(pv,VpCreateRbObject(mf, "0"));
VpPai(pv);
return ToValue(pv);