diff --git a/libs/audio/source/effect/all_pass.cpp b/libs/audio/source/effect/all_pass.cpp
index c93edf05..4accaf9d 100644
--- a/libs/audio/source/effect/all_pass.cpp
+++ b/libs/audio/source/effect/all_pass.cpp
@@ -13,7 +13,7 @@ namespace psemek::audio
 		{
 			all_pass_impl(stream_ptr stream, duration delay, float gain)
 				: stream_(std::move(stream))
-				, buffer_(2 * std::max(1l, delay.samples()), 0.f)
+				, buffer_(std::max<std::size_t>(2, delay.samples()), 0.f)
 				, gain_(gain)
 			{}
 
diff --git a/libs/audio/source/effect/echo.cpp b/libs/audio/source/effect/echo.cpp
index e34748d0..7886743b 100644
--- a/libs/audio/source/effect/echo.cpp
+++ b/libs/audio/source/effect/echo.cpp
@@ -13,7 +13,7 @@ namespace psemek::audio
 		{
 			echo_impl(stream_ptr stream, duration delay, float gain)
 				: stream_(std::move(stream))
-				, buffer_(std::max(2l, delay.samples()), 0.f)
+				, buffer_(std::max<std::size_t>(2, delay.samples()), 0.f)
 				, gain_(gain)
 			{}