diff --git a/include/r3.h b/include/r3.h
index 592d64d..df516df 100644
--- a/include/r3.h
+++ b/include/r3.h
@@ -12,8 +12,6 @@
 #include <string.h>
 #include <pcre.h>
 
-
-
 #ifdef HAVE_STDBOOL_H
 
 #include <stdbool.h>
@@ -23,11 +21,11 @@
 #if !defined(bool) && !defined(__cplusplus)
 typedef unsigned char bool;
 #endif
-#ifndef FALSE
-#    define FALSE 0
+#ifndef false 
+#    define false 0
 #endif
-#ifndef TRUE
-#    define TRUE 1
+#ifndef true
+#    define true 1
 #endif
 
 #endif
diff --git a/src/node.c b/src/node.c
index d7e06ac..10d2399 100644
--- a/src/node.c
+++ b/src/node.c
@@ -772,13 +772,13 @@ node * r3_tree_insert_pathl_ex(node *tree, const char *path, int path_len, route
 }
 
 bool r3_node_has_slug_edges(const node *n) {
-    bool found = FALSE;
+    bool found = false;
     edge *e;
     for ( int i = 0 ; i < n->edge_len ; i++ ) {
         e = &n->edges[i];
         e->has_slug = r3_path_contains_slug_char(e->pattern);
         if (e->has_slug)
-            found = TRUE;
+            found = true;
     }
     return found;
 }