diff --git a/qrenderdoc/CMakeLists.txt b/qrenderdoc/CMakeLists.txt
index 8bf011f19..6d8fdb731 100644
--- a/qrenderdoc/CMakeLists.txt
+++ b/qrenderdoc/CMakeLists.txt
@@ -169,7 +169,7 @@ file(WRITE
 if(CMAKE_COMPILER_IS_GNUCXX)
     file(APPEND
         ${CMAKE_BINARY_DIR}/qrenderdoc/qrenderdoc_cmake.pri
-        "QMAKE_CXXFLAGS+=-Wno-unknown-warning -Wno-implicit-fallthrough -Wno-cast-function-type -Wno-stringop-truncation\n")
+        "QMAKE_CXXFLAGS+=-Wno-unknown-warning -Wno-cast-function-type -Wno-stringop-truncation\n")
 endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 3.9)