diff --git a/Makefile b/Makefile
index 9ba7c088aa3..8696e9e833f 100644
--- a/Makefile
+++ b/Makefile
@@ -273,8 +273,8 @@ src_ext/secondary/ocaml/bin/ocaml:
 	env MAKE=$(MAKE) BOOTSTRAP_EXTRA_OPTS="--disable-ocamldoc --disable-debug-runtime --disable-debugger" BOOTSTRAP_TARGETS="world opt" BOOTSTRAP_ROOT=../.. BOOTSTRAP_DIR=src_ext/secondary ./shell/bootstrap-ocaml.sh $(OCAML_PORT)
 
 cold: compiler
-	env PATH="`pwd`/bootstrap/ocaml/bin:$$PATH" CAML_LD_LIBRARY_PATH= ./configure --with-vendored-deps --without-dune --enable-cold-check $(CONFIGURE_ARGS)
-	env PATH="`pwd`/bootstrap/ocaml/bin:$$PATH" CAML_LD_LIBRARY_PATH= $(MAKE)
+	env PATH="`pwd`/bootstrap/ocaml/bin:$$PATH" CAML_LD_LIBRARY_PATH= OPAM_SWITCH_PREFIX= ./configure --with-vendored-deps --without-dune --enable-cold-check $(CONFIGURE_ARGS)
+	env PATH="`pwd`/bootstrap/ocaml/bin:$$PATH" CAML_LD_LIBRARY_PATH= OPAM_SWITCH_PREFIX= $(MAKE)
 
 cold-%:
 	env PATH="`pwd`/bootstrap/ocaml/bin:$$PATH" CAML_LD_LIBRARY_PATH= $(MAKE) $*
diff --git a/master_changes.md b/master_changes.md
index 342b8cc201a..c2ae3499d36 100644
--- a/master_changes.md
+++ b/master_changes.md
@@ -78,6 +78,7 @@ users)
 
 ## Build
  * Synchronise opam-core.opam with opam-repository changes [#6043 @dra27]
+  * Unset OPAM_SWITCH_PREFIX when using make cold [#5534 @kit-ty-kate]
 
 ## Infrastructure