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-rw-r--r--src/gamma-vidmode.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gamma-vidmode.h b/src/gamma-vidmode.h
index 735ba1f..9a2b7d9 100644
--- a/src/gamma-vidmode.h
+++ b/src/gamma-vidmode.h
@@ -43,7 +43,7 @@ int vidmode_set_option(vidmode_state_t *state, const char *key,
void vidmode_restore(vidmode_state_t *state);
int vidmode_set_temperature(vidmode_state_t *state, int temp, float brightness,
- float gamma[3]);
+ const float gamma[3]);
#endif /* ! _REDSHIFT_GAMMA_VIDMODE_H */