diff --git a/firmware/baseband/proc_am_audio.hpp b/firmware/baseband/proc_am_audio.hpp
index 1ab7890f3..46fbbee52 100644
--- a/firmware/baseband/proc_am_audio.hpp
+++ b/firmware/baseband/proc_am_audio.hpp
@@ -47,7 +47,7 @@ private:
 	};
 	const buffer_s16_t work_audio_buffer {
 		(int16_t*)dst.data(),
-		sizeof(*dst.data()) * dst.size()
+		sizeof(dst) / sizeof(int16_t)
 	};
 
 	dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;
diff --git a/firmware/baseband/proc_nfm_audio.hpp b/firmware/baseband/proc_nfm_audio.hpp
index aa444c206..a4c65576f 100644
--- a/firmware/baseband/proc_nfm_audio.hpp
+++ b/firmware/baseband/proc_nfm_audio.hpp
@@ -46,7 +46,7 @@ private:
 	};
 	const buffer_s16_t work_audio_buffer {
 		(int16_t*)dst.data(),
-		sizeof(*dst.data()) * dst.size()
+		sizeof(dst) / sizeof(int16_t)
 	};
 
 	dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;