diff --git a/DownloadBoost.cmake b/DownloadBoost.cmake
index 832d0273bdd171d4797f2bab97ee0dcd5e78032a..d35d6baefb1996139be842126f50064669531692 100644
--- a/DownloadBoost.cmake
+++ b/DownloadBoost.cmake
@@ -40,7 +40,7 @@ set(BOOTSTRAP_CMD sh bootstrap.sh)
 set(B2_CMD ./b2 -j${N_CORES})
 if(WIN32)
     set(BOOTSTRAP_CMD bootstrap.bat)
-    set(B2_CMD .\b2 -j${N_CORES})
+    set(B2_CMD b2 -j${N_CORES})
 endif()
 
 execute_process(