diff --git a/cc/cc_test.go b/cc/cc_test.go
index 2be4e48..98af7b6 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -2689,7 +2689,7 @@
 	cppOnly := []string{"-fPIC", "${config.CommonGlobalCppflags}", "${config.DeviceGlobalCppflags}", "${config.ArmCppflags}"}
 
 	cflags := []string{"-Werror", "-std=candcpp"}
-	cstd := []string{"-std=gnu23", "-std=conly"}
+	cstd := []string{"-std=gnu17", "-std=conly"}
 	cppstd := []string{"-std=gnu++20", "-std=cpp", "-fno-rtti"}
 
 	lastNDKFlags := []string{
diff --git a/cc/config/global.go b/cc/config/global.go
index ddb4d85..b19682d 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -380,7 +380,7 @@
 		"-w",
 	}
 
-	CStdVersion               = "gnu23"
+	CStdVersion               = "gnu17"
 	CppStdVersion             = "gnu++20"
 	ExperimentalCStdVersion   = "gnu2x"
 	ExperimentalCppStdVersion = "gnu++2b"