diff --git a/src/cfgparse.c b/src/cfgparse.c
index 5f8cb9675..a95f06c80 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -1610,9 +1610,9 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 		free(defproxy.expect_str);
 		if (defproxy.expect_regex) regfree(defproxy.expect_regex);
 
-		if (defproxy.logformat_string == default_http_log_format ||
-		    defproxy.logformat_string == default_tcp_log_format ||
-		    defproxy.logformat_string == clf_http_log_format)
+		if (defproxy.logformat_string != default_http_log_format &&
+		    defproxy.logformat_string != default_tcp_log_format &&
+		    defproxy.logformat_string != clf_http_log_format)
 			free(defproxy.logformat_string);
 
 		free(defproxy.uniqueid_format_string);
diff --git a/src/haproxy.c b/src/haproxy.c
index 48c343344..cede41ca6 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -830,9 +830,9 @@ void deinit(void)
 		free(p->capture_name);
 		free(p->monitor_uri);
 		free(p->rdp_cookie_name);
-		if (p->logformat_string == default_http_log_format ||
-		    p->logformat_string == default_tcp_log_format ||
-		    p->logformat_string == clf_http_log_format)
+		if (p->logformat_string != default_http_log_format &&
+		    p->logformat_string != default_tcp_log_format &&
+		    p->logformat_string != clf_http_log_format)
 			free(p->logformat_string);
 
 		free(p->uniqueid_format_string);