1 files changed, 1 insertions, 1 deletions
diff --git a/complex.c b/complex.c
index 0d4073018d..ef3c01d0f8 100644
--- a/complex.c
+++ b/complex.c
@@ -1411,7 +1411,7 @@ rb_complex_set_real(VALUE cmp, VALUE r)
 VALUE
 rb_complex_set_imag(VALUE cmp, VALUE i)
 {
-    RCOMPLEX_SET_REAL(cmp, i);
+    RCOMPLEX_SET_IMAG(cmp, i);
     return cmp;
 }