diff --git a/warp4j b/warp4j
index dc940da..bdd9701 100755
--- a/warp4j
+++ b/warp4j
@@ -682,16 +682,16 @@ function create_optimized_runtime() {
     local platform=$1
     local machine=$2
     local jmods=$JAVA_DOWNLOAD_PATH/$platform/$machine/$CONCRETE_JAVA_VERSION/$UNPACKED_SUBDIR/jmods
-    local strip-debug=strip-debug
+    local strip_debug=strip-debug
     echo "Creating minimal runtime for $platform..."
     if [[ $JAVA_VERSION_BASE -ge 13 ]]; then
-        $strip-debug=strip-java-debug-attributes
+        $strip_debug=strip-java-debug-attributes
     fi
-    echo "$JLINK --no-header-files --no-man-pages --$strip-debug --module-path '$jmods' --add-modules $MODULES --output '$BUNDLES_PATH/$platform/$BUNDLED_DISTRO_SUBDIR'"
+    echo "$JLINK --no-header-files --no-man-pages --$strip_debug --module-path '$jmods' --add-modules $MODULES --output '$BUNDLES_PATH/$platform/$BUNDLED_DISTRO_SUBDIR'"
     "$JLINK" \
         --no-header-files \
         --no-man-pages \
-        --$strip-debug \
+        --$strip_debug \
         --module-path "$jmods" \
         --add-modules $MODULES \
         --output "$BUNDLES_PATH/$platform/$BUNDLED_DISTRO_SUBDIR"