diff --git a/1-click-installer/install.sh b/1-click-installer/install.sh
index 09f28c69ec..9df8f34ef1 100755
--- a/1-click-installer/install.sh
+++ b/1-click-installer/install.sh
@@ -97,11 +97,13 @@ source "$CONDA_BASEPATH/etc/profile.d/conda.sh" # otherwise conda complains abou
 conda activate
 
 if [ "$OS_NAME" == "mac" ]; then
-    PIP_EXISTS_ACTION=w CONDA_SUBDIR=osx-${OS_ARCH} conda env update -f environment-mac.yml
+    environment_file=environment-mac.yml
 else
-    conda env update -f environment.yml
+    environment_file=environment.yml
 fi
 
+conda env update -f $environment_file
+
 status=$?
 
 if test $status -ne 0