diff --git a/Makefile b/Makefile
index 4acde792584..d4dee06b9f9 100644
--- a/Makefile
+++ b/Makefile
@@ -89,7 +89,7 @@ wasitests: wasitests-unit wasitests-singlepass wasitests-cranelift wasitests-llv
 # Backends
 singlepass: spectests-singlepass emtests-singlepass middleware-singlepass wasitests-singlepass
 	cargo test -p wasmer-singlepass-backend --release
-	cargo test -p wasmer-runtime-core-tests --release --no-default-features --features backend-singlepass
+	cargo test --manifest-path lib/runtime-core-tests/Cargo.toml --release --no-default-features --features backend-singlepass
 
 cranelift: spectests-cranelift emtests-cranelift middleware-cranelift wasitests-cranelift
 	cargo test -p wasmer-clif-backend --release
@@ -98,7 +98,7 @@ cranelift: spectests-cranelift emtests-cranelift middleware-cranelift wasitests-
 llvm: spectests-llvm emtests-llvm wasitests-llvm
 	cargo test -p wasmer-llvm-backend --release
 	cargo test -p wasmer-llvm-backend-tests --release
-	cargo test -p wasmer-runtime-core-tests --release --no-default-features --features backend-llvm
+	cargo test --manifest-path lib/runtime-core-tests/Cargo.toml --release --no-default-features --features backend-llvm
 
 
 # All tests