diff --git a/src/libs/qmuparser/qmuparser.qbs b/src/libs/qmuparser/qmuparser.qbs
index 58f28c0ad..e3a785d95 100644
--- a/src/libs/qmuparser/qmuparser.qbs
+++ b/src/libs/qmuparser/qmuparser.qbs
@@ -32,7 +32,7 @@ VLib {
         "make_unique.h",
     ]
 
-    cpp.defines: 'QMUP_VERSION="' + product.version + '"'
+    cpp.defines: ["QMUPARSER_LIBRARY", 'QMUP_VERSION="' + product.version + '"']
 
     buildconfig.staticBuild: false
 
diff --git a/src/libs/vpropertyexplorer/vpropertyexplorer.qbs b/src/libs/vpropertyexplorer/vpropertyexplorer.qbs
index 62052233d..a67203c65 100644
--- a/src/libs/vpropertyexplorer/vpropertyexplorer.qbs
+++ b/src/libs/vpropertyexplorer/vpropertyexplorer.qbs
@@ -92,4 +92,6 @@ VLib {
         Depends { name: "cpp" }
         cpp.includePaths: [exportingProduct.sourceDirectory]
     }
+
+    cpp.defines: "VPROPERTYEXPLORER_LIBRARY"
 }