diff --git a/repos/ports/src/app/seoul/target.mk b/repos/ports/src/app/seoul/target.mk
index 06a97293f8..9361a4d238 100644
--- a/repos/ports/src/app/seoul/target.mk
+++ b/repos/ports/src/app/seoul/target.mk
@@ -33,3 +33,5 @@ CC_OPT_PIC :=
 vpath %.cc  $(SEOUL_CONTRIB_DIR)
 vpath %.cc  $(REP_DIR)/src/app/seoul
 vpath %.tff $(REP_DIR)/src/app/seoul
+
+CC_CXX_WARN_STRICT_CONVERSION =
diff --git a/repos/ports/src/test/microcode/target.mk b/repos/ports/src/test/microcode/target.mk
index 13437bcdf1..1755b74e91 100644
--- a/repos/ports/src/test/microcode/target.mk
+++ b/repos/ports/src/test/microcode/target.mk
@@ -3,3 +3,5 @@ SRC_CC = main.cc
 LIBS   = base
 
 REQUIRES = nova
+
+CC_CXX_WARN_STRICT_CONVERSION =