diff --git a/config.tests/qpa/xcb-syslibs/xcb.cpp b/config.tests/qpa/xcb-syslibs/xcb.cpp
index 0e1bd76e6cd..00d0da1b6ca 100644
--- a/config.tests/qpa/xcb-syslibs/xcb.cpp
+++ b/config.tests/qpa/xcb-syslibs/xcb.cpp
@@ -57,8 +57,5 @@ int main(int, char **)
 
     xcb_connection_t *connection = xcb_connect("", &primaryScreen);
 
-    // This won't compile unless libxcb >= 1.5 which defines XCB_ATOM_PRIMARY.
-    int xcbAtomPrimary = XCB_ATOM_PRIMARY;
-
     return 0;
 }
diff --git a/config.tests/qpa/xcb/xcb.cpp b/config.tests/qpa/xcb/xcb.cpp
index a5b419e6955..efb4f0ca2eb 100644
--- a/config.tests/qpa/xcb/xcb.cpp
+++ b/config.tests/qpa/xcb/xcb.cpp
@@ -43,5 +43,9 @@ int main(int, char **)
 {
     int primaryScreen = 0;
     xcb_connection_t *t = xcb_connect("", &primaryScreen);
+
+    // This won't compile unless libxcb >= 1.5 which defines XCB_ATOM_PRIMARY.
+    int xcbAtomPrimary = XCB_ATOM_PRIMARY;
+
     return 0;
 }