diff --git a/platformio.ini b/platformio.ini
index 55a4789f..3e2436d1 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -63,8 +63,8 @@ lib_deps_all =
     ${common.lib_deps_gps}
     ${common.lib_deps_sensors}
 build_flags =
-    -include src/hal/${PIOENV}.h
-    -include src/paxcounter.conf
+    "-include src/hal/${PIOENV}.h"
+    "-include src/paxcounter.conf"
     -w
     ;'-D ARDUINO_LMIC_PROJECT_CONFIG_H="/$PROJECTSRC_DIR/lmic_config.h"'
     '-D ARDUINO_LMIC_PROJECT_CONFIG_H=../../../src/lmic_config.h'