diff --git a/firmware/baseband/proc_fsk.cpp b/firmware/baseband/proc_fsk.cpp
index f02ef472..889d3e23 100644
--- a/firmware/baseband/proc_fsk.cpp
+++ b/firmware/baseband/proc_fsk.cpp
@@ -86,7 +86,11 @@ void FSKProcessor::execute(buffer_c8_t buffer) {
 
 	// TODO: Factor out this hidden decimation magic.
 	for(size_t i=0; i<channel.count; i+=4) {
-		std::complex<float> sample { channel.p[i].real(), channel.p[i].imag() };
+		// TODO: No idea why implicit cast int16_t->float is not allowed.
+		const std::complex<float> sample {
+			static_cast<float>(channel.p[i].real()),
+			static_cast<float>(channel.p[i].imag())
+		};
 		mf_0.execute_once(sample);
 		if( mf_1.execute_once(sample) ) {
 			const auto value_0 = mf_0.get_output();
diff --git a/firmware/baseband/proc_fsk.hpp b/firmware/baseband/proc_fsk.hpp
index 4a41c158..8a675732 100644
--- a/firmware/baseband/proc_fsk.hpp
+++ b/firmware/baseband/proc_fsk.hpp
@@ -80,7 +80,7 @@ private:
 	};
 
 	clock_recovery::ClockRecovery clock_recovery {
-		sampling_rate / 4,
+		static_cast<float>(sampling_rate / 4),
 		9600,
 		[this](const float symbol) { this->consume_symbol(symbol); }
 	};