diff --git a/chatterino.pro b/chatterino.pro
index d2dbc118..d59bbb0f 100644
--- a/chatterino.pro
+++ b/chatterino.pro
@@ -40,8 +40,6 @@ macx {
 }
 
 # Submodules
-DEFINES += IRC_NAMESPACE=Communi
-
 include(lib/warnings.pri)
 include(lib/appbase.pri)
 include(lib/fmt.pri)
diff --git a/lib/libcommuni.pri b/lib/libcommuni.pri
index 43b902fb..8402eb74 100644
--- a/lib/libcommuni.pri
+++ b/lib/libcommuni.pri
@@ -1,3 +1,5 @@
+DEFINES += IRC_NAMESPACE=Communi
+
 include(../lib/libcommuni/src/core/core.pri)
 include(../lib/libcommuni/src/model/model.pri)
 include(../lib/libcommuni/src/util/util.pri)