diff --git a/modules/juce_graphics/juce_graphics_Harfbuzz.cpp b/modules/juce_graphics/juce_graphics_Harfbuzz.cpp
index 8dd000292e..ce539b695c 100644
--- a/modules/juce_graphics/juce_graphics_Harfbuzz.cpp
+++ b/modules/juce_graphics/juce_graphics_Harfbuzz.cpp
@@ -52,7 +52,9 @@ JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wdeprecated-declarations",
                                      "-Wconditional-uninitialized",
                                      "-Wexpansion-to-defined",
                                      "-Wunsafe-loop-optimizations",
-                                     "-Wformat-overflow")
+                                     "-Wformat-overflow",
+                                     "-Woverflow",
+                                     "-Wimplicit-fallthrough")
 
 #define HAVE_ATEXIT 1