diff --git a/Library/Homebrew/requirements/python_dependency.rb b/Library/Homebrew/requirements/python_dependency.rb
index 4f8bcf04fc..7f86995ab8 100644
--- a/Library/Homebrew/requirements/python_dependency.rb
+++ b/Library/Homebrew/requirements/python_dependency.rb
@@ -89,6 +89,7 @@ class PythonInstalled < Requirement
       false
     elsif @min_version.major == 2 && `python -c "import sys; print(sys.version_info[0])"`.strip == "3"
       @unsatisfied_because += "Your `python` points to a Python 3.x. This is not supported."
+      false
     else
       @imports.keys.map do |module_name|
         if not importable? module_name