diff --git a/etc/kaleidoscope-builder.conf b/etc/kaleidoscope-builder.conf
index d0af6564..01a2e77e 100644
--- a/etc/kaleidoscope-builder.conf
+++ b/etc/kaleidoscope-builder.conf
@@ -24,8 +24,9 @@ if [ "${ARCH}" = "virtual" ]; then
     #
     if [ -z "${COMPILER_PATH}" ]; then
        COMPILER_PATH="/usr/bin/"
-       COMPILER_PREFIX=""
     fi
+
+    COMPILER_PREFIX=""
 else
    ARCH="avr"
 fi