diff --git a/Makefile b/Makefile
index 4b459a7..624b44b 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,8 @@
 .PHONY: build
 build: external
 	@[ -f "build/build.ninja" ] || cmake -B build -G Ninja -DUSE_TRACE=ON \
-		-DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-gdwarf-4 -g3 -DJBUF_STAT -DRE_RTP_PCAP"
+		-DCMAKE_BUILD_TYPE=Debug \
+		-DCMAKE_C_FLAGS="-gdwarf-4 -g3 -DJBUF_STAT -DRE_RTP_PCAP"
 	@cmake --build build --parallel
 
 .PHONY: webui
@@ -32,6 +33,9 @@ systemd: external
 		-DCMAKE_C_FLAGS="-g -DJBUF_STAT" -DUSE_SD_SOCK=ON
 	make build
 
+.PHONY: systemd_pro
+systemd_pro: external_pro systemd
+
 .PHONY: unix
 unix: external
 	make clean
@@ -48,6 +52,11 @@ external:
 	cd external/re && \
 		patch -p1 < ../../patches/re_aubuf_timestamp_order_fix.patch
 
+.PHONY: external_pro
+external_pro: external
+	cd external/baresip && \
+		patch -p1 < ../../../mix_pro/patches/slmagic.diff
+
 ##############################################################################
 #
 # Sanitizers