diff --git a/debian/rules b/debian/rules
index d6bf4560..8d593d31 100755
--- a/debian/rules
+++ b/debian/rules
@@ -210,15 +210,16 @@ override_dh_auto_configure: preconfigure
 	if test -d /tmp/cmake/bin; then \
 	ls /tmp/cmake/bin; \
 	fi
-	if test -d /tmp/cmake/bin/; then \
-		export PATH=/tmp/cmake/bin:$$PATH; \
+	CMAKE_BIN=cmake
+	if test -f /tmp/cmake/bin/cmake; then \
+		CMAKE_BIN=/tmp/cmake/bin/cmake; \
 	fi
-	echo $$PATH
+	echo $$CMAKE_BIN
 	# TODO(axw) specify build type for CMake
 	# TODO(axw) pass compiler flags, etc.
 
 	cd $(TARGET_BUILD) && \
-	cmake ../ \
+	$$CMAKE_BIN ../ \
 	-DCMAKE_INSTALL_PREFIX=/usr/lib/llvm-$(LLVM_VERSION) \
 	-DCMAKE_VERBOSE_MAKEFILE=ON \
 	-DCMAKE_BUILD_TYPE=RelWithDebInfo \