diff --git a/qbs/imports/QtcPlugin.qbs b/qbs/imports/QtcPlugin.qbs
index d06f99385e4..f4ee221695f 100644
--- a/qbs/imports/QtcPlugin.qbs
+++ b/qbs/imports/QtcPlugin.qbs
@@ -46,6 +46,6 @@ QtcProduct {
     Export {
         Depends { name: "cpp" }
         Depends { name: "ExtensionSystem" }
-        cpp.includePaths: ".."
+        cpp.includePaths: exportingProduct.sourceDirectory + "/.."
     }
 }
diff --git a/src/libs/3rdparty/libvterm/vterm.qbs b/src/libs/3rdparty/libvterm/vterm.qbs
index e35658908da..4c3a08e519e 100644
--- a/src/libs/3rdparty/libvterm/vterm.qbs
+++ b/src/libs/3rdparty/libvterm/vterm.qbs
@@ -30,6 +30,6 @@ QtcLibrary {
 
     Export {
         Depends { name: "cpp" }
-        cpp.includePaths: "include"
+        cpp.includePaths: exportingProduct.sourceDirectory + "/include"
     }
 }
diff --git a/src/libs/modelinglib/modelinglib.qbs b/src/libs/modelinglib/modelinglib.qbs
index 9929bf33c03..54ad0cad64c 100644
--- a/src/libs/modelinglib/modelinglib.qbs
+++ b/src/libs/modelinglib/modelinglib.qbs
@@ -396,8 +396,8 @@ QtcLibrary {
 
     Export {
         cpp.includePaths: [
-            ".",
-            "./qtserialization/inc"
+            exportingProduct.sourceDirectory,
+            exportingProduct.sourceDirectory + "/qtserialization/inc"
         ]
     }
 }
diff --git a/src/libs/solutions/spinner/spinner.qbs b/src/libs/solutions/spinner/spinner.qbs
index d02858d0484..74fefc89875 100644
--- a/src/libs/solutions/spinner/spinner.qbs
+++ b/src/libs/solutions/spinner/spinner.qbs
@@ -14,7 +14,7 @@ QtcLibrary {
 
     Export {
         Depends { name: "cpp" }
-        cpp.includePaths: ".."
+        cpp.includePaths: exportingProduct.sourceDirectory + "/.."
     }
 }
 
diff --git a/src/libs/solutions/tasking/tasking.qbs b/src/libs/solutions/tasking/tasking.qbs
index 3b69d7449ff..f0601530d1c 100644
--- a/src/libs/solutions/tasking/tasking.qbs
+++ b/src/libs/solutions/tasking/tasking.qbs
@@ -22,7 +22,10 @@ QtcLibrary {
 
     Export {
         Depends { name: "cpp" }
-        cpp.includePaths: ["..", "../.."]
+        cpp.includePaths: [
+            exportingProduct.sourceDirectory + "/..",
+            exportingProduct.sourceDirectory + "/../.."
+        ]
     }
 }
 
diff --git a/src/libs/utils/utils.qbs b/src/libs/utils/utils.qbs
index afc0f202aa7..e73c9ef9230 100644
--- a/src/libs/utils/utils.qbs
+++ b/src/libs/utils/utils.qbs
@@ -475,6 +475,6 @@ QtcLibrary {
     Export {
         Depends { name: "Qt"; submodules: ["concurrent", "widgets" ] }
         Depends { name: "Tasking" }
-        cpp.includePaths: "mimetypes2"
+        cpp.includePaths: exportingProduct.sourceDirectory + "/mimetypes2"
     }
 }