diff --git a/CI/ci-linux-prepare.sh b/CI/ci-linux-prepare.sh
index b00b52ef..04bd972a 100755
--- a/CI/ci-linux-prepare.sh
+++ b/CI/ci-linux-prepare.sh
@@ -9,7 +9,7 @@ BUILDPATH=""
 
 # set GTEST path
 if [ -d "$HOME/sw/gtest-1.10.0" ]; then
-  OPTIONS="-DGTEST_ROOT=~/sw/gtest-1.10.0"
+  OPTIONS="-DGTEST_ROOT=$HOME/sw/gtest-1.10.0"
 else
   OPTIONS="-DGTEST_ROOT=/usr/src/gtest/"
 fi