diff --git a/headers/posix/net/if.h b/headers/posix/net/if.h
index 8186a62952..686b043626 100644
--- a/headers/posix/net/if.h
+++ b/headers/posix/net/if.h
@@ -114,7 +114,7 @@ extern "C" {
 #endif
 
 unsigned if_nametoindex(const char* name);
-char* if_indextoname(unsigned, char* nameBuffer);
+char* if_indextoname(unsigned ifindex, char* nameBuffer);
 struct if_nameindex* if_nameindex(void);
 void if_freenameindex(struct if_nameindex* interfaceArray);
 
diff --git a/headers/posix/sys/socket.h b/headers/posix/sys/socket.h
index 2766b588e3..e3642099cd 100644
--- a/headers/posix/sys/socket.h
+++ b/headers/posix/sys/socket.h
@@ -184,7 +184,7 @@ int     setsockopt(int socket, int level, int option, const void *value,
 			socklen_t length);
 int		shutdown(int socket, int how);
 int		socket(int domain, int type, int protocol);
-int		sockatmark(int );
+int		sockatmark(int descriptor);
 int		socketpair(int domain, int type, int protocol, int socketVector[2]);
 
 #if __cplusplus
diff --git a/headers/posix/sys/statvfs.h b/headers/posix/sys/statvfs.h
index e36b4f2fa0..ff7cb452b1 100644
--- a/headers/posix/sys/statvfs.h
+++ b/headers/posix/sys/statvfs.h
@@ -31,8 +31,8 @@ struct statvfs {
 extern "C" {
 #endif
 
-int statvfs(const char *, struct statvfs *);
-int fstatvfs(int, struct statvfs *);
+int statvfs(const char *path, struct statvfs *buf);
+int fstatvfs(int fildes, struct statvfs *buf);
 
 #ifdef __cplusplus
 }