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-rw-r--r--scripts/basic/docproc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
index 4c9523ef9c0..99ca7a69868 100644
--- a/scripts/basic/docproc.c
+++ b/scripts/basic/docproc.c
@@ -385,7 +385,7 @@ int main(int argc, char *argv[])
if (!srctree)
srctree = getcwd(NULL, 0);
kernsrctree = getenv("KBUILD_SRC");
- if (!kernsrctree)
+ if (!kernsrctree || !*kernsrctree)
kernsrctree = srctree;
if (argc != 3) {
usage();