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-rw-r--r--src/coding.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/coding.c b/src/coding.c
index 32d1c64afbe..a5632bad963 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -4097,8 +4097,8 @@ decode_coding_iso_2022 (struct coding_system *coding)
#define ENCODE_DESIGNATION(charset, reg, coding) \
do { \
unsigned char final_char = CHARSET_ISO_FINAL (charset); \
- char *intermediate_char_94 = "()*+"; \
- char *intermediate_char_96 = ",-./"; \
+ const char *intermediate_char_94 = "()*+"; \
+ const char *intermediate_char_96 = ",-./"; \
int revision = -1; \
int c; \
\