diff --git a/enzyme/benchmarks/ReverseMode/ba/Makefile.make b/enzyme/benchmarks/ReverseMode/ba/Makefile.make
index 8a13a0e524f..1e4ed61859a 100644
--- a/enzyme/benchmarks/ReverseMode/ba/Makefile.make
+++ b/enzyme/benchmarks/ReverseMode/ba/Makefile.make
@@ -8,7 +8,7 @@ clean:
 	rm -f *.ll *.o results.txt results.json
 
 $(dir)/benchmarks/ReverseMode/ba/target/release/libbars.a: src/lib.rs Cargo.toml
-	ENZYME_LOOSE_TYPES=1 cargo +enzyme rustc --release --lib --crate-type=staticlib --features=libm
+	RUSTFLAGS="-Z autodiff=LooseTypes" cargo +enzyme rustc --release --lib --crate-type=staticlib --features=libm
 
 ba.o: ba.cpp $(dir)/benchmarks/ReverseMode/ba/target/release/libbars.a
 	clang++ $(LOAD) $(BENCH) ba.cpp -I /usr/include/c++/11 -I/usr/include/x86_64-linux-gnu/c++/11 -O2 -o ba.o -lpthread $(BENCHLINK) -lm $(dir)/benchmarks/ReverseMode/ba/target/release/libbars.a -L /usr/lib/gcc/x86_64-linux-gnu/11
diff --git a/enzyme/benchmarks/ReverseMode/gmm/Makefile.make b/enzyme/benchmarks/ReverseMode/gmm/Makefile.make
index e3c15f4dcc1..7eff2a950c8 100644
--- a/enzyme/benchmarks/ReverseMode/gmm/Makefile.make
+++ b/enzyme/benchmarks/ReverseMode/gmm/Makefile.make
@@ -1,4 +1,4 @@
-# RUN: if [ %llvmver -ge 12 ] || [ %llvmver -le 9 ]; then cd %S && LD_LIBRARY_PATH="%bldpath:$LD_LIBRARY_PATH" BENCH="%bench" BENCHLINK="%blink" LOAD="%newLoadClangEnzyme" make -B gmm.o results.json -f %s; fi
+# RUN: cd %S && LD_LIBRARY_PATH="%bldpath:$LD_LIBRARY_PATH" BENCH="%bench" BENCHLINK="%blink" LOAD="%newLoadClangEnzyme" make -B gmm.o results.json VERBOSE=1 -f %s
 
 .PHONY: clean
 
@@ -8,7 +8,7 @@ clean:
 	rm -f *.ll *.o results.txt results.json
 
 $(dir)/benchmarks/ReverseMode/gmm/target/release/libgmmrs.a: src/lib.rs Cargo.toml
-	ENZYME_LOOSE_TYPES=1 cargo +enzyme rustc --release --lib --crate-type=staticlib --features=libm
+	RUSTFLAGS="-Z autodiff=LooseTypes" cargo +enzyme rustc --release --lib --crate-type=staticlib --features=libm
 
 gmm.o: gmm.cpp $(dir)/benchmarks/ReverseMode/gmm/target/release/libgmmrs.a
 	clang++ $(LOAD) $(BENCH) gmm.cpp -I /usr/include/c++/11 -I/usr/include/x86_64-linux-gnu/c++/11 -O2 -o gmm.o -lpthread $(BENCHLINK) -lm $(dir)/benchmarks/ReverseMode/gmm/target/release/libgmmrs.a -L /usr/lib/gcc/x86_64-linux-gnu/11
diff --git a/enzyme/benchmarks/ReverseMode/lstm/Makefile.make b/enzyme/benchmarks/ReverseMode/lstm/Makefile.make
index 23ba9a51cef..0d21100d756 100644
--- a/enzyme/benchmarks/ReverseMode/lstm/Makefile.make
+++ b/enzyme/benchmarks/ReverseMode/lstm/Makefile.make
@@ -8,7 +8,7 @@ clean:
 	rm -f *.ll *.o results.json
 
 $(dir)/benchmarks/ReverseMode/lstm/target/release/liblstm.a: src/lib.rs Cargo.toml
-	ENZYME_LOOSE_TYPES=1 cargo +enzyme rustc --release --lib --crate-type=staticlib 
+	RUSTFLAGS="-Z autodiff=LooseTypes" cargo +enzyme rustc --release --lib --crate-type=staticlib 
 
 %-unopt.ll: %.cpp
 	clang++ $(BENCH) $^ -pthread -O2 -fno-vectorize -fno-slp-vectorize -ffast-math -fno-unroll-loops -o $@ -S -emit-llvm