diff --git a/src/Common/Common.pro b/src/Common/Common.pro
index 8b291c8c..a00adb96 100644
--- a/src/Common/Common.pro
+++ b/src/Common/Common.pro
@@ -5,7 +5,6 @@
 #-------------------------------------------------
 
 QT -= core gui
-QMAKE_CXXFLAGS += /WX
 DEFINES += PWE_COMMON
 
 CONFIG += staticlib
@@ -14,6 +13,7 @@ DESTDIR = $$BUILD_DIR/Common
 
 unix {
     target.path = /usr/lib
+    QMAKE_CXXFLAGS += /WX
     INSTALLS += target
 }
 
diff --git a/src/Core/Core.pro b/src/Core/Core.pro
index db752fa6..0fc38a4f 100644
--- a/src/Core/Core.pro
+++ b/src/Core/Core.pro
@@ -5,7 +5,6 @@
 #-------------------------------------------------
 
 QT -= core gui
-QMAKE_CXXFLAGS += /WX
 DEFINES += PWE_CORE
 
 CONFIG += staticlib
@@ -15,6 +14,7 @@ DEFINES += GLEW_STATIC
 
 unix {
     target.path = /usr/lib
+    QMAKE_CXXFLAGS += /WX
     INSTALLS += target
 }
 
diff --git a/src/Editor/Editor.pro b/src/Editor/Editor.pro
index 43009514..be567953 100644
--- a/src/Editor/Editor.pro
+++ b/src/Editor/Editor.pro
@@ -5,11 +5,11 @@
 #-------------------------------------------------
 
 QT += core gui opengl widgets
-QMAKE_CXXFLAGS += /WX
 DEFINES += PWE_EDITOR
 RESOURCES += Icons.qrc
 
 win32: {
+    QMAKE_CXXFLAGS += /WX
     RC_ICONS += icons/AppIcon.ico
     QT += winextras
 }
diff --git a/src/Math/Math.pro b/src/Math/Math.pro
index ed9d6f60..1966ed70 100644
--- a/src/Math/Math.pro
+++ b/src/Math/Math.pro
@@ -5,7 +5,6 @@
 #-------------------------------------------------
 
 QT       -= core gui
-QMAKE_CXXFLAGS += /WX
 DEFINES += PWE_MATH
 
 CONFIG += staticlib
@@ -14,6 +13,7 @@ DESTDIR = $$BUILD_DIR/Math
 
 unix {
     target.path = /usr/lib
+    QMAKE_CXXFLAGS += /WX
     INSTALLS += target
 }