diff --git a/include/core/random.h b/include/core/random.h
index e332314a..573d3302 100644
--- a/include/core/random.h
+++ b/include/core/random.h
@@ -4,17 +4,17 @@
 #ifndef OCARINA_CORE_RANDOM_H
 #define OCARINA_CORE_RANDOM_H
 
-#ifndef CONFIG_TEST
+#ifdef CONFIG_TEST
+
+void _seed_random(unsigned int);
+unsigned int _pick_random();
+
+#else /* CONFIG_TEST */
 
 #include <stdlib.h>
 static inline void _seed_random(unsigned int n) { srand(time(NULL) + n); }
 static inline unsigned int _pick_random() { return rand(); }
 
-#else /* CONFIG_TEST */
-
-void _seed_random(unsigned int);
-unsigned int _pick_random();
-
 #endif /* CONFIG_TEST */