diff --git a/include/osmocom/core/rate_ctr.h b/include/osmocom/core/rate_ctr.h
index 74414e9..6ce2dfe 100644
--- a/include/osmocom/core/rate_ctr.h
+++ b/include/osmocom/core/rate_ctr.h
@@ -48,7 +48,7 @@
 	/*! The class to which this group belongs */
 	int class_id;
 	/*! The number of counters in this group */
-	const unsigned int num_ctr;
+	unsigned int num_ctr;
 	/*! Pointer to array of counter names */
 	const struct rate_ctr_desc *ctr_desc;
 };