diff --git a/debian/rules b/debian/rules
index cc3fa4f..11d90f2 100755
--- a/debian/rules
+++ b/debian/rules
@@ -14,9 +14,9 @@ export DEB_CXXFLAGS_MAINT_APPEND+=-DSIMDE_ENABLE_OPENMP -fopenmp-simd -O3
 override_dh_auto_configure:
 	dh_auto_configure -- \
 		-DOBS_MULTIARCH_SUFFIX=/$(DEB_HOST_MULTIARCH) \
-		-DUNIX_STRUCTURE=1 \
+		-DUNIX_STRUCTURE=TRUE \
 		-DDISABLE_UPDATE_MODULE=TRUE \
-		-DBUILD_CAPTIONS=0 \
+		-DBUILD_CAPTIONS=TRUE \
 		-DOBS_VERSION_OVERRIDE=${DEB_VERSION}
 
 override_dh_auto_build: