diff --git a/bin/save-ebuild-env.sh b/bin/save-ebuild-env.sh
index faa29efe65..e941017c31 100644
--- a/bin/save-ebuild-env.sh
+++ b/bin/save-ebuild-env.sh
@@ -30,6 +30,10 @@ __save_ebuild_env() {
 		# identical, so strip them from the binpkg. It's also not needed
 		# for installing / removing a package.
 		unset MAKEOPTS NINJAOPTS
+
+		# These variables are constantly changing. Strip them so we
+		# don't introduce non-reproducible data into the binpkg.
+		unset EPOCHREALTIME EPOCHSECONDS SRANDOM
 	fi
 
 	# misc variables inherited from the calling environment