diff --git a/Makefile b/Makefile
index 6337731..55f15ae 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ SRC_DIR := src
 SOURCES != find '$(SRC_DIR)' -iname '*.v'
 
 V_PATH ?= v
-V := $(V_PATH) -showcc -gc boehm
+V := $(V_PATH) -showcc -gc boehm -d dynamic_boehm
 
 all: vieter