diff --git a/tests/lib/prepare.sh b/tests/lib/prepare.sh
index 0fedefd8cae..f4ce3899f6e 100755
--- a/tests/lib/prepare.sh
+++ b/tests/lib/prepare.sh
@@ -130,12 +130,6 @@ update_core_snap_for_classic_reexec() {
     rm squashfs-root/usr/lib/snapd/* squashfs-root/usr/bin/snap
     # and copy in the current libexec
     cp -a "$LIBEXECDIR"/snapd/* squashfs-root/usr/lib/snapd/
-    case "$SPREAD_SYSTEM" in
-        fedora-*|centos-*|amazon-*)
-            # RPM can rewrite shebang to #!/usr/bin/sh
-            sed -i -e '1 s;#!/usr/bin/sh;#!/bin/sh;' squashfs-root/usr/lib/snapd/snap-device-helper
-            ;;
-    esac
     # also the binaries themselves
     cp -a /usr/bin/snap squashfs-root/usr/bin/
     # make sure bin/snapctl is a symlink to lib/