diff --git a/appveyor.yml b/appveyor.yml
index 56b31d58ad..4359f78bd5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -174,10 +174,12 @@ for:
               echo == INSTALL CIMG =================================================================================
               mkdir $HOME/cimg
               git clone --depth=1 https://github.com/dtschump/CImg.git $HOME/cimg
-              set CIMG_DIR=$HOME/cimg
-              echo CIMG_DIR=$CIMG_DIR
-              set CIMG_INCLUDE_DIR=$HOME/cimg
-              echo CIMG_INCLUDE_DIR=$CIMG_INCLUDE_DIR
+              ls $HOME/*
+              ls $HOME/cimg/*
+              export CIMG_DIR=$HOME/cimg
+              echo "CIMG_DIR=$CIMG_DIR"
+              export CIMG_INCLUDE_DIR=$HOME/cimg
+              echo "CIMG_INCLUDE_DIR=$CIMG_INCLUDE_DIR"
             fi
 
     build_script: