diff --git a/debian/rules b/debian/rules
index 7ddf0ea4e2..de10dc205c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -2,7 +2,7 @@
 
 BUILDDIR=build_dir
 
-extra_flags := $(if $(filter i386,$(DEB_HOST_ARCH)),"-DLAUNCHPAD_BUILD=on","-DLAUNCHPAD_BUILD=on -DUSE_MMAP=on -DDISABLE_RCT2=on")
+extra_flags := $(if $(filter i386,$(DEB_HOST_ARCH)),-DLAUNCHPAD_BUILD=on,-DLAUNCHPAD_BUILD=on -DUSE_MMAP=on -DDISABLE_RCT2=on)
 
 override_dh_auto_configure:
 	dh_auto_configure -a -- $(extra_flags)