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Diffstat (limited to 'gtk2_ardour/logmeter.h')
-rw-r--r--gtk2_ardour/logmeter.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/gtk2_ardour/logmeter.h b/gtk2_ardour/logmeter.h
index ff0520a63b..9ff60db0c5 100644
--- a/gtk2_ardour/logmeter.h
+++ b/gtk2_ardour/logmeter.h
@@ -20,6 +20,8 @@
#ifndef __ardour_gtk_log_meter_h__
#define __ardour_gtk_log_meter_h__
+#include "ardour/dB.h"
+
#if 1
static inline float
_log_meter (float power, double lower_db, double upper_db, double non_linearity)