diff --git a/net-wireless/gnuradio/gnuradio-9999.ebuild b/net-wireless/gnuradio/gnuradio-9999.ebuild
index ce5367b7d7..a75e029200 100644
--- a/net-wireless/gnuradio/gnuradio-9999.ebuild
+++ b/net-wireless/gnuradio/gnuradio-9999.ebuild
@@ -145,33 +145,33 @@ src_configure() {
 		-DENABLE_GNURADIO_RUNTIME=ON
 		-DENABLE_PYTHON=ON
 		-DENABLE_GR_BLOCKS=ON
-		-DENABLE_GR_ANALOG="$(usex analog)"
+		-DENABLE_GR_ANALOG="$(usex analog ON OFF)"
 		-DENABLE_GR_AUDIO=ON
-		-DENABLE_GR_CHANNELS="$(usex channels)"
-		-DENABLE_GR_CTRLPORT="$(usex ctrlport)"
-		-DENABLE_GR_DIGITAL="$(usex digital)"
-		-DENABLE_DOXYGEN="$(usex doc)"
-		-DENABLE_GR_DTV="$(usex dtv)"
-		-DENABLE_GR_FEC="$(usex fec)"
+		-DENABLE_GR_CHANNELS="$(usex channels ON OFF)"
+		-DENABLE_GR_CTRLPORT="$(usex ctrlport ON OFF)"
+		-DENABLE_GR_DIGITAL="$(usex digital ON OFF)"
+		-DENABLE_DOXYGEN="$(usex doc ON OFF)"
+		-DENABLE_GR_DTV="$(usex dtv ON OFF)"
+		-DENABLE_GR_FEC="$(usex fec ON OFF)"
 		-DENABLE_GR_FFT=ON
-		-DENABLE_GR_FILTER="$(usex filter)"
-		-DENABLE_GRC="$(usex grc)"
-		-DENABLE_GR_IIO="$(usex iio)"
-		-DENABLE_GR_MODTOOL="$(usex modtool)"
-		-DENABLE_GR_BLOCKTOOL="$(usex modtool)"
-		-DENABLE_GR_NETWORK="$(usex network)"
+		-DENABLE_GR_FILTER="$(usex filter ON OFF)"
+		-DENABLE_GRC="$(usex grc ON OFF)"
+		-DENABLE_GR_IIO="$(usex iio ON OFF)"
+		-DENABLE_GR_MODTOOL="$(usex modtool ON OFF)"
+		-DENABLE_GR_BLOCKTOOL="$(usex modtool ON OFF)"
+		-DENABLE_GR_NETWORK="$(usex network ON OFF)"
 		-DENABLE_GR_PDU=ON
-		-DENABLE_PERFORMANCE_COUNTERS="$(usex performance-counters)"
-		-DENABLE_TESTING="$(usex test)"
-		-DENABLE_GR_QTGUI="$(usex qt5)"
-		-DENABLE_GR_SOAPY="$(usex soapy)"
-		-DENABLE_GR_TRELLIS="$(usex trellis)"
-		-DENABLE_GR_UHD="$(usex uhd)"
-		-DENABLE_GR_UTILS="$(usex utils)"
-		-DENABLE_GR_VIDEO_SDL="$(usex sdl)"
-		-DENABLE_GR_VOCODER="$(usex vocoder)"
-		-DENABLE_GR_WAVELET="$(usex wavelet)"
-		-DENABLE_GR_ZEROMQ="$(usex zeromq)"
+		-DENABLE_PERFORMANCE_COUNTERS="$(usex performance-counters ON OFF)"
+		-DENABLE_TESTING="$(usex test ON OFF)"
+		-DENABLE_GR_QTGUI="$(usex qt5 ON OFF)"
+		-DENABLE_GR_SOAPY="$(usex soapy ON OFF)"
+		-DENABLE_GR_TRELLIS="$(usex trellis ON OFF)"
+		-DENABLE_GR_UHD="$(usex uhd ON OFF)"
+		-DENABLE_GR_UTILS="$(usex utils ON OFF)"
+		-DENABLE_GR_VIDEO_SDL="$(usex sdl ON OFF)"
+		-DENABLE_GR_VOCODER="$(usex vocoder ON OFF)"
+		-DENABLE_GR_WAVELET="$(usex wavelet ON OFF)"
+		-DENABLE_GR_ZEROMQ="$(usex zeromq ON OFF)"
 		-DSYSCONFDIR="${EPREFIX}"/etc
 		-DPYTHON_EXECUTABLE="${PYTHON}"
 		-DGR_PYTHON_DIR="$(python_get_sitedir)"