diff --git a/src/util/formatting.c b/src/util/formatting.c
index e1e1c0bf0..2506ddc9c 100644
--- a/src/util/formatting.c
+++ b/src/util/formatting.c
@@ -46,26 +46,26 @@ float strtof_l(const char* restrict str, char** restrict end, locale_t locale) {
 #endif
 
 int ftostr_u(char* restrict str, size_t size, float f) {
-#if HAVE_LOCALE
+#ifdef HAVE_LOCALE
 	locale_t l = newlocale(LC_NUMERIC_MASK, "C", 0);
 #else
 	locale_t l = "C";
 #endif
 	int res = ftostr_l(str, size, f, l);
-#if HAVE_LOCALE
+#ifdef HAVE_LOCALE
 	freelocale(l);
 #endif
 	return res;
 }
 
 float strtof_u(const char* restrict str, char** restrict end) {
-#if HAVE_LOCALE
+#ifdef HAVE_LOCALE
 	locale_t l = newlocale(LC_NUMERIC_MASK, "C", 0);
 #else
 	locale_t l = "C";
 #endif
 	float res = strtof_l(str, end, l);
-#if HAVE_LOCALE
+#ifdef HAVE_LOCALE
 	freelocale(l);
 #endif
 	return res;