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-rw-r--r--src/include/wdatutil.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/include/wdatutil.h b/src/include/wdatutil.h
index b87b637..9a0810a 100644
--- a/src/include/wdatutil.h
+++ b/src/include/wdatutil.h
@@ -27,8 +27,8 @@
#define WAVE_TYPE_COUNT 3
-extern char* wave_names[];
-extern char* wave_descriptions[];
+extern const char* wave_names[];
+extern const char* wave_descriptions[];
extern unsigned long wave_first_harmonics[];
extern unsigned long wave_harmonic_intervals[];