diff --git a/run-tests.sh b/run-tests.sh
index ba50d0d..0e42717 100755
--- a/run-tests.sh
+++ b/run-tests.sh
@@ -21,6 +21,7 @@ if [ $# -lt 1 ]; then
     exit 1
 fi
 PREFIX="$1"
+PREFIX="$(cd "$PREFIX" && pwd)"
 export PATH=$PREFIX/bin:$PATH
 
 : ${ARCHS:=${TOOLCHAIN_ARCHS-i686 x86_64 armv7 aarch64}}