diff --git a/source/third_party/mongoose/mongoose.cpp b/source/third_party/mongoose/mongoose.cpp
index d62597e757..821eded4a5 100644
--- a/source/third_party/mongoose/mongoose.cpp
+++ b/source/third_party/mongoose/mongoose.cpp
@@ -33,6 +33,7 @@
 # pragma GCC diagnostic ignored "-Wunused-function"
 # ifndef __clang__
 #  pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#  pragma GCC diagnostic ignored "-Wcast-function-type"
 # endif
 #endif