diff --git a/vendor/CMakeLists.txt b/vendor/CMakeLists.txt
index 0ea7a01..d00ad86 100644
--- a/vendor/CMakeLists.txt
+++ b/vendor/CMakeLists.txt
@@ -16,6 +16,10 @@ if(APPLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_DARWIN_C_SOURCE -D__DARWIN_C_LEVEL=__DARWIN_C_FULL")
endif()
+# https://github.com/nmeum/android-tools/issues/133
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ftrivial-auto-var-init=zero")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftrivial-auto-var-init=zero")
+
# Android seems to use various attributes supported by clang but not by
# GCC which causes it to emit lots of warnings. Since these attributes
# don't seem to effect runtime behaviour simply disable the warnings.