diff --git a/scripts/macos_dependencies.sh b/scripts/macos_dependencies.sh
index d5e5416c..66a0c2bd 100755
--- a/scripts/macos_dependencies.sh
+++ b/scripts/macos_dependencies.sh
@@ -8,7 +8,7 @@ cask "gcc-arm-embedded"
 brew "gcc@13"
 EOS
 
-if [[ -n "$NO_CATCH2" ]]; then
+if [[ -z "$NO_CATCH2" ]]; then
   cd /tmp
   git clone -b v2.x --depth 1 https://github.com/catchorg/Catch2.git
   cd Catch2
diff --git a/scripts/ubuntu_dependencies.sh b/scripts/ubuntu_dependencies.sh
index 8b994c9e..855a937f 100755
--- a/scripts/ubuntu_dependencies.sh
+++ b/scripts/ubuntu_dependencies.sh
@@ -13,7 +13,7 @@ fi
 $SUDO apt-get update
 $SUDO apt-get install -y --no-install-recommends clang opencl-headers libzmq3-dev ocl-icd-opencl-dev cppcheck
 
-if [[ -n "$NO_CATCH2" ]]; then
+if [[ -z "$NO_CATCH2" ]]; then
   cd /tmp
   git clone -b v2.x --depth 1 https://github.com/catchorg/Catch2.git
   cd Catch2