diff --git a/make-mac.mk b/make-mac.mk
index 4655c8618..ca1fed6aa 100644
--- a/make-mac.mk
+++ b/make-mac.mk
@@ -75,7 +75,6 @@ ifeq ($(ZT_DEBUG),1)
 	ARCH_FLAGS=
 	CFLAGS+=-Wall -g $(INCLUDES) $(DEFS) $(ARCH_FLAGS)
 	STRIP=echo
-	RUSTFLAGS=
 	RUST_VARIANT=debug
 	# The following line enables optimization for the crypto code, since
 	# C25519 in particular is almost UNUSABLE in heavy testing without it.
@@ -84,7 +83,6 @@ else
 	CFLAGS?=-Ofast -fstack-protector-strong
 	CFLAGS+=$(ARCH_FLAGS) -Wall -flto -fPIE -mmacosx-version-min=$(MACOS_VERSION_MIN) -DNDEBUG -Wno-unused-private-field $(INCLUDES) $(DEFS)
 	STRIP=strip
-	RUSTFLAGS=--release
 	RUST_VARIANT=release
 endif
 
@@ -121,8 +119,8 @@ zerotier-one: one
 zeroidc: zeroidc/target/libzeroidc.a
 
 zeroidc/target/libzeroidc.a:	FORCE
-	cd zeroidc && MACOSX_DEPLOYMENT_TARGET=$(MACOS_VERSION_MIN) cargo build --target=x86_64-apple-darwin $(RUSTFLAGS)
-	cd zeroidc && MACOSX_DEPLOYMENT_TARGET=$(MACOS_VERSION_MIN) cargo build --target=aarch64-apple-darwin $(RUSTFLAGS)
+	cd zeroidc && MACOSX_DEPLOYMENT_TARGET=$(MACOS_VERSION_MIN) cargo build --target=x86_64-apple-darwin --$(RUST_VARIANT)
+	cd zeroidc && MACOSX_DEPLOYMENT_TARGET=$(MACOS_VERSION_MIN) cargo build --target=aarch64-apple-darwin --$(RUST_VARIANT)
 	cd zeroidc && lipo -create target/x86_64-apple-darwin/$(RUST_VARIANT)/libzeroidc.a target/aarch64-apple-darwin/$(RUST_VARIANT)/libzeroidc.a -output target/libzeroidc.a
 
 central-controller: