diff --git a/projects/r-wos.org/gti/package.yml b/projects/r-wos.org/gti/package.yml
index 16d31685..6318752c 100644
--- a/projects/r-wos.org/gti/package.yml
+++ b/projects/r-wos.org/gti/package.yml
@@ -14,7 +14,7 @@ build:
     tea.xyz/gx/make: '*'
   script: |
     make
-    mkdir "{{prefix}}"/bin
+    mkdir -p "{{prefix}}"/bin
     mv gti "{{prefix}}"/bin
 
 test: