diff --git a/toolbox.spec b/toolbox.spec
index c019ecd..b87d817 100644
--- a/toolbox.spec
+++ b/toolbox.spec
@@ -168,7 +168,7 @@ The %{name}-tests package contains system tests for %{name}.
 
 
 %build
-export GO111MODULE=off
+export %{gomodulesmode}
 export GOPATH=%{gobuilddir}:%{gopath}
 export CGO_CFLAGS="%{optflags} -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64"
 ln -s src/cmd cmd