diff --git a/mingw.yml b/mingw.yml
index 77a03f4a..8c63f3ea 100644
--- a/mingw.yml
+++ b/mingw.yml
@@ -26,9 +26,9 @@ install:
 
 
 build_script:
-    - cmd: set CMD="%CDM%; mkdir -p build"
-    - cmd: set CMD="%CMD%; cd build      "
-    - cmd: set CMD="%CMD%; cmake .. -G 'Unix Makefiles' -DCMAKE_CXX_STANDARD=98 -DCMAKE_CXX_FLAGS=-Wno-deprecated"
-    - cmd: set CMD="%CMD%; make python_tests"
+    - cmd: set   CMD=%CDM%; mkdir -p build
+    - cmd: set   CMD=%CMD%; cd build    
+    - cmd: set   CMD=%CMD%; cmake .. -G 'Unix Makefiles' -DCMAKE_CXX_STANDARD=98 -DCMAKE_CXX_FLAGS=-Wno-deprecated
+    - cmd: set   CMD=%CMD%; make python_tests
     - cmd: echo %CMD%
     - cmd: C:\msys64\usr\bin\bash -c "%CMD%"