diff --git a/bmap-writer.cpp b/bmap-writer.cpp
index 2912272..bbd30fb 100644
--- a/bmap-writer.cpp
+++ b/bmap-writer.cpp
@@ -277,7 +277,7 @@ int main(int argc, const char *argv[]) {
 
     std::cout << "Starting bmap writer..." << std::endl;
     if (isDeviceMounted(device)) {
-        std::cerr << "Error: Device " << device << " is mounted. Please unmount it before proceeding." << std::endl;
+        std::cerr << "Error device: " << device << " is mounted. Please unmount it before proceeding." << std::endl;
         return 1;
     }
     auto start = std::chrono::high_resolution_clock::now();
@@ -288,7 +288,7 @@ int main(int argc, const char *argv[]) {
     }
     int ret = BmapWriteImage(imageFile, bmap, device);
     if (ret != 0) {
-        std::cerr << "Failed to write image to device" << std::endl;
+        std::cerr << "Failed to write image to device: " << device << std::endl;
         return ret;
     }
     auto end = std::chrono::high_resolution_clock::now();