diff --git a/be/src/http/CMakeLists.txt b/be/src/http/CMakeLists.txt
index 1940b10165..46e6f1eab9 100644
--- a/be/src/http/CMakeLists.txt
+++ b/be/src/http/CMakeLists.txt
@@ -24,7 +24,7 @@ set(LIBRARY_OUTPUT_PATH "${BUILD_DIR}/src/http")
 set(EXECUTABLE_OUTPUT_PATH "${BUILD_DIR}/src/http")
 
 add_library(Webserver STATIC
-  mongoose.c
+  mongoose.cpp
   webserver.cpp
   download_action.cpp
   http_headers.cpp
diff --git a/be/src/http/mongoose.c b/be/src/http/mongoose.cpp
similarity index 100%
rename from be/src/http/mongoose.c
rename to be/src/http/mongoose.cpp