diff --git a/.flowconfig b/.flowconfig
index 054b0d01d..aa31b812a 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -15,6 +15,12 @@
 .*/node_modules/react-tools/src/core/ReactInstanceHandles.js
 .*/node_modules/react-tools/src/event/EventPropagators.js
 
+# Ignore commoner tests
+.*/node_modules/react-tools/node_modules/commoner/test/.*
+
+# See https://github.com/facebook/flow/issues/442
+.*/react-tools/node_modules/commoner/lib/reader.js
+
 # Ignore jest
 .*/react-native/node_modules/jest-cli/.*
 
diff --git a/Examples/SampleApp/_flowconfig b/Examples/SampleApp/_flowconfig
index 1082fb195..9d4fb3614 100644
--- a/Examples/SampleApp/_flowconfig
+++ b/Examples/SampleApp/_flowconfig
@@ -15,6 +15,12 @@
 .*/node_modules/react-tools/src/core/ReactInstanceHandles.js
 .*/node_modules/react-tools/src/event/EventPropagators.js
 
+# Ignore commoner tests
+.*/node_modules/react-tools/node_modules/commoner/test/.*
+
+# See https://github.com/facebook/flow/issues/442
+.*/react-tools/node_modules/commoner/lib/reader.js
+
 # Ignore jest
 .*/react-native/node_modules/jest-cli/.*