diff --git a/fakegen.rb b/fakegen.rb
index 075c8f7..f8eb499 100644
--- a/fakegen.rb
+++ b/fakegen.rb
@@ -8,6 +8,11 @@
 $DEFAULT_ARG_HISTORY = 50
 $MAX_CALL_HISTORY = 50
 
+def output_pragmas
+  putd "#pragma GCC system_header"
+  puts
+end
+
 def include_dependencies
   putd "#include <stdarg.h>"
   putd "#include <string.h> /* For memset and memcpy */"
@@ -637,6 +642,7 @@ def output_macro_counting_shortcuts(has_calling_conventions)
 
 def output_c_and_cpp(has_calling_conventions)
   include_guard {
+    output_pragmas
     include_dependencies
     output_constants
     output_internal_helper_macros
diff --git a/fff.h b/fff.h
index aa38912..a5ea2f9 100644
--- a/fff.h
+++ b/fff.h
@@ -26,6 +26,8 @@ SOFTWARE.
 #ifndef FAKE_FUNCTIONS
 #define FAKE_FUNCTIONS
 
+#pragma GCC system_header
+
 #include <stdarg.h>
 #include <string.h> /* For memset and memcpy */