diff --git a/src/cfgparse.c b/src/cfgparse.c
index f013928..8921702 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -1536,7 +1536,7 @@
                                    const char *file, int linenum,
                                    int *non_global_parsed)
 {
-	if (!strcmp(section_name, "global")) {
+	if (strcmp(section_name, "global") == 0) {
 		if (*non_global_parsed == 1)
 		        _ha_diag_warning("parsing [%s:%d] : global section detected after a non-global one, the prevalence of their statements is unspecified\n", file, linenum);
 	}
diff --git a/src/cli.c b/src/cli.c
index a3ee4c4..6a46f13 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -1714,11 +1714,11 @@
 	if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
 		return 1;
 
-	if (!strcmp(args[0], "expert-mode")) {
+	if (strcmp(args[0], "expert-mode") == 0) {
 		level = ACCESS_EXPERT;
 		level_str = "expert-mode";
 	}
-	else if (!strcmp(args[0], "experimental-mode")) {
+	else if (strcmp(args[0], "experimental-mode") == 0) {
 		level = ACCESS_EXPERIMENTAL;
 		level_str = "experimental-mode";
 	}
diff --git a/src/server.c b/src/server.c
index b8908ce..15c4d05 100644
--- a/src/server.c
+++ b/src/server.c
@@ -4681,7 +4681,7 @@
 
 		while (1) {
 			/* check for duplicate server */
-			if (!strcmp(srv->id, next->id)) {
+			if (strcmp(srv->id, next->id) == 0) {
 				ha_alert("Already exists a server with the same name in backend.\n");
 				goto out;
 			}