diff --git a/etc/kaleidoscope-builder.conf b/etc/kaleidoscope-builder.conf
index c57cf09d..bb8448a9 100644
--- a/etc/kaleidoscope-builder.conf
+++ b/etc/kaleidoscope-builder.conf
@@ -108,7 +108,7 @@ ARDUINO_TOOLS_PATH="${ARDUINO_TOOLS_PATH:-${ARDUINO_PATH}/hardware/tools}"
 ARDUINO_PACKAGE_PATH="${ARDUINO_PACKAGE_PATH:-${HOME}/.arduino15/packages}"
 
 ARDUINO_BUILDER="${ARDUINO_BUILDER:-${ARDUINO_PATH}/arduino-builder}"
-ARDUINO_IDE_VERSION="100607"
+ARDUINO_IDE_VERSION="10607"
 
 ######
 ###### Executable paths