diff --git a/s/Singularity/Singularity-3.4.1.eb b/s/Singularity/Singularity-3.4.1.eb
index 3020080e..db802819 100644
--- a/s/Singularity/Singularity-3.4.1.eb
+++ b/s/Singularity/Singularity-3.4.1.eb
@@ -1,5 +1,7 @@
 # IT4Innovations 2019
 
+# Dokončeno ručně, nejde bez ROOTa !!!
+
 easyblock = 'ConfigureMake'
 
 name = 'Singularity'
@@ -27,13 +29,8 @@ osdependencies = [
 ]
 
 skipsteps = ['configure']
-#prebuildopts = 'export GOPATH=$(pwd):$GOPATH && '
-skipsteps = ['configure']
-prebuildopts = 'mkdir -p src/github.com/sylabs && '
-prebuildopts += 'ln -sf %(builddir)s/singularity src/github.com/sylabs/singularity && '
-prebuildopts += './mconfig -p %(installdir)s -b build && '
-prebuildopts += 'cd build && '
-preinstallopts = 'cd build && '
+prebuildopts = './mconfig --prefix=%(installdir)s && '
+buildopts = '-C ./builddir'
 
 
 postinstallcmds = [