1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 1f4f27d4..f255b651 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ BUILD_OPTS = `$(PYTHON) -c \
 # In not in a virtualenv, add --user options for install commands.
 INSTALL_OPTS = `$(PYTHON) -c \
 	"import sys; print('' if hasattr(sys, 'real_prefix') else '--user')"`
-TEST_PREFIX = PYTHONWARNINGS=always PSUTIL_TESTING=1 PSUTIL_DEBUG=1
+TEST_PREFIX = PYTHONWARNINGS=always PSUTIL_DEBUG=1
 
 all: test