diff --git a/src/poetry/utils/shell.py b/src/poetry/utils/shell.py
index caf08c82348..8f720962cdb 100644
--- a/src/poetry/utils/shell.py
+++ b/src/poetry/utils/shell.py
@@ -122,7 +122,8 @@ def activate(self, env: VirtualEnv) -> int | None:
 
         if self._name == "zsh":
             # Under ZSH the source command should be invoked in zsh's bash emulator
-            c.sendline(f"emulate bash -c '. {shlex.quote(str(activate_path))}'")
+            quoted_activate_path = shlex.quote(str(activate_path))
+            c.sendline(f"emulate bash -c {shlex.quote(f'. {quoted_activate_path}')}")
         elif self._name == "xonsh":
             c.sendline(f"vox activate {shlex.quote(str(env.path))}")
         elif self._name in ["nu", "fish"]: