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-rw-r--r--patchoat/patchoat.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/patchoat/patchoat.cc b/patchoat/patchoat.cc
index 7ea5beab37..3c8c1a397c 100644
--- a/patchoat/patchoat.cc
+++ b/patchoat/patchoat.cc
@@ -1068,7 +1068,7 @@ static int patchoat_image(TimingLogger& timings,
TimingLogger::ScopedTiming pt("patch image and oat", &timings);
std::string output_directory =
- output_image_filename.substr(0, output_image_filename.find_last_of("/"));
+ output_image_filename.substr(0, output_image_filename.find_last_of('/'));
bool ret = PatchOat::Patch(input_image_location, base_delta, output_directory, isa, &timings);
if (kIsDebugBuild) {