diff --git a/recipes/recipes.win-mingw32-dw2.conf b/recipes/recipes.win-mingw32-dw2.conf
index f2cb2c6a..f4e6ee05 100644
--- a/recipes/recipes.win-mingw32-dw2.conf
+++ b/recipes/recipes.win-mingw32-dw2.conf
@@ -1,5 +1,5 @@
 PATH /mingw32/bin/
 platform MINGW32
 MAKE mingw32-make.exe
-CC=gcc
-CXX=g++
+CC gcc
+CXX g++
diff --git a/recipes/recipes.win-mingw32-sjlj.conf b/recipes/recipes.win-mingw32-sjlj.conf
index 57902020..618bc6b5 100644
--- a/recipes/recipes.win-mingw32-sjlj.conf
+++ b/recipes/recipes.win-mingw32-sjlj.conf
@@ -1,5 +1,5 @@
 PATH /c/Toolchains/mingw32_posix/bin:/c/Toolchains/python32
 platform MINGW32
 MAKE mingw32-make.exe
-CC=gcc
-CXX=g++
+CC gcc
+CXX g++
diff --git a/recipes/recipes.win-mingw64-seh.conf b/recipes/recipes.win-mingw64-seh.conf
index d1aa3eb7..065d5f16 100644
--- a/recipes/recipes.win-mingw64-seh.conf
+++ b/recipes/recipes.win-mingw64-seh.conf
@@ -1,5 +1,5 @@
 PATH /mingw64/bin
 platform MINGW64
 MAKE mingw32-make.exe
-CC=gcc
-CXX=g++
+CC gcc
+CXX g++
diff --git a/recipes/recipes.win-mingw64-sjlj.conf b/recipes/recipes.win-mingw64-sjlj.conf
index b700996c..a29f1ed0 100644
--- a/recipes/recipes.win-mingw64-sjlj.conf
+++ b/recipes/recipes.win-mingw64-sjlj.conf
@@ -1,5 +1,5 @@
 PATH /c/Toolchains/mingw64_posix/bin:/c/Toolchains/python64
 platform MINGW64
 MAKE mingw32-make.exe
-CC=gcc
-CXX=g++
+CC gcc
+CXX g++