diff --git a/configure.ac b/configure.ac
index 1098d1fa4..22b04178c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -313,7 +313,7 @@ AS_IF([test "x$enable_wayland" = "xyes"],
 
         PKG_CHECK_EXISTS([wayland-client xkbcommon gdk-pixbuf-2.0],
                          [
-                            BACKEND_PC_FILES="$BACKEND_PC_FILES wayland-client xkbcommon",
+                            BACKEND_PC_FILES="$BACKEND_PC_FILES wayland-client xkbcommon"
                             BACKEND_PC_FILES_PRIVATE="$BACKEND_PC_FILES_PRIVATE gdk-pixbuf-2.0"
                          ],
                          [])