diff --git a/src/string_utils.h b/src/string_utils.h
index 461173a346..d4781e2d9a 100644
--- a/src/string_utils.h
+++ b/src/string_utils.h
@@ -24,8 +24,9 @@ static inline int uitostr(unsigned int n, char *buf) {
 		ret++;
 	}
 
-	if (ret == 0)
+	if (ret == 0) {
 		ret = 1;
+	}
 
 	int pos = ret;
 	while (pos--) {
@@ -36,18 +37,22 @@ static inline int uitostr(unsigned int n, char *buf) {
 }
 
 static inline const char *skip_space_const(const char *src) {
-	if (!src)
+	if (!src) {
 		return NULL;
-	while (*src && isspace((unsigned char)*src))
+	}
+	while (*src && isspace((unsigned char)*src)) {
 		src++;
+	}
 	return src;
 }
 
 static inline char *skip_space_mut(char *src) {
-	if (!src)
+	if (!src) {
 		return NULL;
-	while (*src && isspace((unsigned char)*src))
+	}
+	while (*src && isspace((unsigned char)*src)) {
 		src++;
+	}
 	return src;
 }