diff --git a/client/sources-linux/buildenv.sh b/client/sources-linux/buildenv.sh
index d92eec68..51e4f2c7 100755
--- a/client/sources-linux/buildenv.sh
+++ b/client/sources-linux/buildenv.sh
@@ -277,8 +277,6 @@ cd /usr/src/automake-1.15
 CFLAGS="-O2 -pipe -DCLOCK_MONOTONIC=1 -UHAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC -U_FILE_OFFSET_BITS" \
  python -OO -m pip install pyuv --no-binary :all:
 
-python -OO -m pip uninstall -y cffi
-
 cd /usr/lib/python2.7
 python -m compileall -q
 python -OO -m compileall -q
@@ -503,8 +501,6 @@ cd /usr/src/automake-1.15
 
 python -OO -m pip install pyuv --no-binary :all:
 
-python -OO -m pip uninstall -y cffi
-
 cd /usr/lib/python2.7
 python -m compileall -q
 python -OO -m compileall -q
diff --git a/client/sources/buildenv.sh b/client/sources/buildenv.sh
index 599f375f..e10b87bc 100755
--- a/client/sources/buildenv.sh
+++ b/client/sources/buildenv.sh
@@ -156,7 +156,6 @@ for prefix in $WINE32 $WINE64; do
     WINEPREFIX=$prefix wine C:\\Python27\\python -OO -m pip install --upgrade setuptools
     WINEPREFIX=$prefix wine C:\\Python27\\python -OO -m pip install --upgrade $PACKAGES
     WINEPREFIX=$prefix wine C:\\Python27\\python -OO -m pip install --upgrade --no-binary :all: psutil
-#    WINEPREFIX=$prefix wine C:\\Python27\\python -OO -m pip uninstall -y cffi
     WINEPREFIX=$prefix wine C:\\Python27\\python -m compileall -q C:\\Python27\\Lib || true
     WINEPREFIX=$prefix wine C:\\Python27\\python -OO -m compileall -q C:\\Python27\\Lib || true
 done