diff --git a/radio/composites/decimator.lua b/radio/composites/decimator.lua
index 6a9b9863e..54a7a7abc 100644
--- a/radio/composites/decimator.lua
+++ b/radio/composites/decimator.lua
@@ -10,7 +10,7 @@
 -- @tparam int decimation Downsampling factor M
 -- @tparam[opt={}] table options Additional options, specifying:
 --                               * `num_taps` (int, default 128)
---                               * `window_type` (string, default "hamming")
+--                               * `window` (string, default "hamming")
 --
 -- @signature in:ComplexFloat32 > out:ComplexFloat32
 -- @signature in:Float32 > out:Float32
@@ -31,7 +31,7 @@ function DecimatorBlock:instantiate(decimation, options)
     assert(decimation, "Missing argument #1 (decimation)")
     options = options or {}
 
-    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, 1/decimation, 1.0, options.window_type)
+    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, 1/decimation, 1.0, options.window)
     local downsampler = blocks.DownsamplerBlock(decimation)
     self:connect(filter, downsampler)
 
diff --git a/radio/composites/interpolator.lua b/radio/composites/interpolator.lua
index 7277ef906..fbee75ab5 100644
--- a/radio/composites/interpolator.lua
+++ b/radio/composites/interpolator.lua
@@ -11,7 +11,7 @@
 -- @tparam int interpolation Upsampling factor L
 -- @tparam[opt={}] table options Additional options, specifying:
 --                               * `num_taps` (int, default 128)
---                               * `window_type` (string, default "hamming")
+--                               * `window` (string, default "hamming")
 --
 -- @signature in:ComplexFloat32 > out:ComplexFloat32
 -- @signature in:Float32 > out:Float32
@@ -34,7 +34,7 @@ function InterpolatorBlock:instantiate(interpolation, options)
 
     local scaler = blocks.MultiplyConstantBlock(interpolation)
     local upsampler = blocks.UpsamplerBlock(interpolation)
-    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, 1/interpolation, 1.0, options.window_type)
+    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, 1/interpolation, 1.0, options.window)
     self:connect(scaler, upsampler, filter)
 
     self:add_type_signature({block.Input("in", types.ComplexFloat32)}, {block.Output("out", types.ComplexFloat32)})
diff --git a/radio/composites/rationalresampler.lua b/radio/composites/rationalresampler.lua
index 64b2fe3da..1e88b587b 100644
--- a/radio/composites/rationalresampler.lua
+++ b/radio/composites/rationalresampler.lua
@@ -11,7 +11,7 @@
 -- @tparam int decimation Downsampling factor M
 -- @tparam[opt={}] table options Additional options, specifying:
 --                               * `num_taps` (int, default 128)
---                               * `window_type` (string, default "hamming")
+--                               * `window` (string, default "hamming")
 --
 -- @signature in:ComplexFloat32 > out:ComplexFloat32
 -- @signature in:Float32 > out:Float32
@@ -37,7 +37,7 @@ function RationalResamplerBlock:instantiate(interpolation, decimation, options)
 
     local scaler = blocks.MultiplyConstantBlock(interpolation)
     local upsampler = blocks.UpsamplerBlock(interpolation)
-    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, cutoff, 1.0, options.window_type)
+    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, cutoff, 1.0, options.window)
     local downsampler = blocks.DownsamplerBlock(decimation)
     self:connect(scaler, upsampler, filter, downsampler)
 
diff --git a/radio/composites/tuner.lua b/radio/composites/tuner.lua
index 3438efe78..20013540f 100644
--- a/radio/composites/tuner.lua
+++ b/radio/composites/tuner.lua
@@ -15,7 +15,7 @@
 -- @tparam int decimation Downsampling factor M
 -- @tparam[opt={}] table options Additional options, specifying:
 --                               * `num_taps` (int, default 128)
---                               * `window_type` (string, default "hamming")
+--                               * `window` (string, default "hamming")
 --
 -- @signature in:ComplexFloat32 > out:ComplexFloat32
 --
@@ -38,7 +38,7 @@ function TunerBlock:instantiate(offset, bandwidth, decimation, options)
     options = options or {}
 
     local translator = blocks.FrequencyTranslatorBlock(offset)
-    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, bandwidth/2, nil, options.window_type)
+    local filter = blocks.LowpassFilterBlock(options.num_taps or 128, bandwidth/2, nil, options.window)
     local downsampler = blocks.DownsamplerBlock(decimation)
     self:connect(translator, filter, downsampler)