diff --git a/miner_wrapper.sh b/miner_wrapper.sh
index 8fa7c0b..7667d5b 100755
--- a/miner_wrapper.sh
+++ b/miner_wrapper.sh
@@ -12,6 +12,9 @@ LOG_FILE="cgminer.log"
 killall -9 cgminer 2>/dev/null
 sleep 1
 
+# Cleanup stale semaphore locks from potential crashes
+rm -f /tmp/cgminer-usb-*
+
 # Default mode
 MODE="sha256"