diff --git a/src/secp256k1/CMakeLists.txt b/src/secp256k1/CMakeLists.txt
--- a/src/secp256k1/CMakeLists.txt
+++ b/src/secp256k1/CMakeLists.txt
@@ -6,9 +6,7 @@
 # libsecp256k1 use a different set of flags.
 add_compiler_flag(
 	-pedantic
-	-Wshadow
 	-Wno-unused-function
-	-Wno-nonnull
 	-Wno-overlength-strings
 )