diff --git a/thirdparty/libcsp/src/csp_iflist.c b/thirdparty/libcsp/src/csp_iflist.c
index 2bfef422..b17dca44 100644
--- a/thirdparty/libcsp/src/csp_iflist.c
+++ b/thirdparty/libcsp/src/csp_iflist.c
@@ -77,7 +77,10 @@ static int csp_bytesize(char *buf, int len, unsigned long int n) {
 		postfix = 'B';
  	}
  
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-truncation"
 	return snprintf(buf, len, "%.1f%c", size, postfix);
+#pragma GCC diagnostic pop
 }
 
 void csp_iflist_print(void) {