diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee98014740..0d2b57d561 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -273,6 +273,7 @@ if(NOT MSVC)
 	add_definitions(-Wno-multichar)
 	add_definitions(-Wno-deprecated-register)
 	add_definitions(-Wno-tautological-pointer-compare)
+	add_definitions(-Wformat-overflow)
 
 	# Don't compile with strict aliasing, we're not 100% aliasing-safe
 	add_compile_options(-fno-strict-aliasing)