diff --git a/SConstruct b/SConstruct
index 2c6e8d4..00b3842 100644
--- a/SConstruct
+++ b/SConstruct
@@ -142,7 +142,7 @@ class BuildVariant:
         self.env.Alias(self.variant_name, self.variant_dir)
 
 
-base_ccflags = ["-Werror", "-Wall", "-Wextra", "-Wpedantic"]
+base_ccflags = ["-Werror", "-Wall", "-Wextra", "-Wpedantic", "-ansi", "-std=gnu11"]
 debug_ccflags = ["-ggdb", "-O0"]
 release_ccflags = [
     "-Oz",