diff --git a/.travis.yml b/.travis.yml
index 15a7f67..9560ab0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,7 @@ python:
 install:
 - travis_retry pip install -U pip
 - travis_retry pip uninstall -y Manticore || echo "Manticore not cached"  # uninstall any old, cached Manticore
-- travis_retry pip install --no-binary capstone --no-binary keystone-engine .[dev]  # cs/ks can have pip install issues (cs issues #445)
+- travis_retry pip install --no-binary capstone --no-binary keystone-engine -e .[dev]  # cs/ks can have pip install issues (cs issues #445)
 - scripts/travis_install_z3.sh
 script:
 - scripts/travis_test.sh
diff --git a/README.md b/README.md
index 79bcc7d..1b69042 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Then, install the Z3 Theorem Prover. Download the [latest release](https://githu
 For a dev install that includes dependencies for tests, run:
 
 ```
-pip install -e --no-binary capstone --no-binary keystone-engine .[dev]
+pip install --no-binary capstone --no-binary keystone-engine -e .[dev]
 ```
 
 You can run the tests with the commands below: