diff --git a/src/plugins/acct_gather_energy/rapl/acct_gather_energy_rapl.c b/src/plugins/acct_gather_energy/rapl/acct_gather_energy_rapl.c
index 0becbaf2d1da22fd4acf8c43aa05d3b588be273e..f4520d699799f9a8c5a8f025ba02564d7f5dd4e8 100644
--- a/src/plugins/acct_gather_energy/rapl/acct_gather_energy_rapl.c
+++ b/src/plugins/acct_gather_energy/rapl/acct_gather_energy_rapl.c
@@ -436,7 +436,7 @@ extern int acct_gather_energy_p_update_node_energy(void)
 	xassert(_run_in_daemon());
 
 	if (!local_energy) {
-		debug("%s: trying to update node energy, but no local_energy"
+		debug("%s: trying to update node energy, but no local_energy "
 		      "yet.", __func__);
 		acct_gather_energy_p_conf_set(NULL);
 	}