diff --git a/src/pulse/volume.h b/src/pulse/volume.h
index 7806954e0..97fc10ba0 100644
--- a/src/pulse/volume.h
+++ b/src/pulse/volume.h
@@ -216,7 +216,7 @@ char *pa_volume_snprint(char *s, size_t l, pa_volume_t v);
  * any release without warning and without being considered API or ABI
  * breakage. You should not use this definition anywhere where it
  * might become part of an ABI. \since 0.9.15 */
-#define PA_SW_VOLUME_SNPRINT_DB_MAX 10
+#define PA_SW_VOLUME_SNPRINT_DB_MAX 11
 
 /** Pretty print a volume but show dB values. \since 0.9.15 */
 char *pa_sw_volume_snprint_dB(char *s, size_t l, pa_volume_t v);