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-rw-r--r--ext/bigdecimal/bigdecimal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index ffc6613..ef9debf 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -86,8 +86,8 @@ static ID id_eq;
#define DBLE_FIG (DBL_DIG+1) /* figure of double */
#endif
-#ifndef RBIGNUM_ZERO_P
-# define RBIGNUM_ZERO_P(x) rb_bigzero_p(x)
+#ifndef BIGNUM_ZERO_P
+# define BIGNUM_ZERO_P(x) rb_bigzero_p(x)
#endif
#ifndef RRATIONAL_ZERO_P