diff --git a/src/native/common/common_tools.h b/src/native/common/common_tools.h
index 0dd9ee28..3f7ff4c3 100644
--- a/src/native/common/common_tools.h
+++ b/src/native/common/common_tools.h
@@ -58,7 +58,7 @@ typedef struct {
 	int attribs[ATTRIB_LIST_SIZE];
 } attrib_list_t;
 
-#ifdef _cplusplus
+#ifndef _cplusplus
 typedef enum {false, true} bool;
 #endif