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-rw-r--r--src/dump.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/dump.c b/src/dump.c
index 11eba4e40..f1e167e35 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -18,9 +18,9 @@
#ifndef MRB_WITHOUT_FLOAT
#ifdef MRB_USE_FLOAT
-#define MRB_FLOAT_FMT "%.8e"
+#define MRB_FLOAT_FMT "%.9g"
#else
-#define MRB_FLOAT_FMT "%.16e"
+#define MRB_FLOAT_FMT "%.17g"
#endif
#endif