diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index d2b167deb9..7cc7488060 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -1423,10 +1423,9 @@ static int parse_config(struct env_opts *opts)
 			return rc;
 
 		if (ENVSIZE(0) != ENVSIZE(1)) {
-			ENVSIZE(0) = ENVSIZE(1) = min(ENVSIZE(0), ENVSIZE(1));
 			fprintf(stderr,
-				"Redundant environments have inequal size, set to 0x%08lx\n",
-				ENVSIZE(1));
+				"Redundant environments have unequal size");
+			return -1;
 		}
 	}