diff --git a/lib/roken/fnmatch.hin b/lib/roken/fnmatch.hin
index adee1fdd7..7675f4bd5 100644
--- a/lib/roken/fnmatch.hin
+++ b/lib/roken/fnmatch.hin
@@ -42,6 +42,10 @@
 #endif
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define fnmatch rk_fnmatch
 
 #define	FNM_NOMATCH	1	/* Match failed. */
@@ -53,4 +57,8 @@
 int ROKEN_LIB_FUNCTION
 fnmatch (const char *, const char *, int);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* !_FNMATCH_H_ */
diff --git a/lib/roken/glob.hin b/lib/roken/glob.hin
index fb6b53986..ffb608104 100644
--- a/lib/roken/glob.hin
+++ b/lib/roken/glob.hin
@@ -43,6 +43,10 @@
 #endif
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define glob_t rk_glob_t
 #define	glob rk_glob
 #define	globfree rk_globfree
@@ -93,4 +97,8 @@ glob (const char *, int, int (*)(const char *, int), glob_t *);
 void ROKEN_LIB_FUNCTION
 globfree (glob_t *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* !_GLOB_H_ */