diff --git a/Makefile.inc1 b/Makefile.inc1
index 6657f3967139..35ccdd82ea7d 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1499,7 +1499,7 @@ sign-packages:	_pkgbootstrap .PHONY
 # Run test suite on installed world.
 #
 checkworld: .PHONY
-	@if [ ! -x ${LOCALBASE}/bin/kyua ]; then \
+	@if [ ! -x "${LOCALBASE}/bin/kyua" ]; then \
 		echo "You need kyua (devel/kyua) to run the test suite." | /usr/bin/fmt; \
 		exit 1; \
 	fi
@@ -1512,7 +1512,7 @@ checkworld: .PHONY
 # Build the API documentation with doxygen
 #
 doxygen: .PHONY
-	@if [ ! -x ${LOCALBASE}/bin/doxygen ]; then \
+	@if [ ! -x "${LOCALBASE}/bin/doxygen" ]; then \
 		echo "You need doxygen (devel/doxygen) to generate the API documentation of the kernel." | /usr/bin/fmt; \
 		exit 1; \
 	fi