diff --git a/cpp/Makefile b/cpp/Makefile
index 1b149ffc3945e40ab8790fdecdf0f12de52ca651..bcffd1cbe550055ad9bdc9b98855dafa23afd236 100644
--- a/cpp/Makefile
+++ b/cpp/Makefile
@@ -5,7 +5,7 @@ INCLUDES += -I.
 CXXFLAGS += -std=c++14 -O3 -Wall -Wextra -Wfatal-errors -Werror -pedantic -Wno-deprecated-declarations $(INCLUDES)
 
 
-all: switchchain switchchain_exponent switchchain_initialtris
+all: switchchain switchchain_exponent switchchain_initialtris switchchain_dsp
 
 
 switchchain:
@@ -17,6 +17,9 @@ switchchain_exponent:
 switchchain_initialtris:
 
 
+switchchain_dsp:
+
+
 # target : dep1 dep2 dep3
 # 	$@ = target
 # 	$< = dep1