diff --git a/src/build.sh b/src/build.sh
index d3d11675..f19f35db 100755
--- a/src/build.sh
+++ b/src/build.sh
@@ -211,6 +211,13 @@ for branch in ${BRANCH_NAME//,/ }; do
     if [ "$WITH_MICROG" = true ]; then
       echo '$(call inherit-product, vendor/partner_gms/products/gms.mk)' > "vendor/$vendor/config/partner_gms.mk"
     fi
+    if [ "$WITH_GMS" = true ]; then
+      if [ "$WITH_MICROG" = true ]; then
+        echo ">> [$(date)] WARNING: free space for addons be will not be reserved when both WITH_MICROG and WITH_GMS are enabled"
+      else
+        echo ">> [$(date)] WARNING: WITH_GMS will not reserve free space for addons and is deprecated in favor of WITH_MICROG"
+      fi
+    fi
 
     # If needed, apply the microG's signature spoofing patch
     if [ "$SIGNATURE_SPOOFING" = "yes" ] || [ "$SIGNATURE_SPOOFING" = "restricted" ]; then