diff --git a/debian/changelog b/debian/changelog
index 947efbb2..be6fec30 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 llvm-toolchain-3.7 (1:3.7~+rc2-3) UNRELEASED; urgency=medium
 
   * Team upload
+
   [ Luciano Bello ]
   * d/p/CVE-2015-2305.patch, fix security issue on regcomp.c
 
diff --git a/debian/patches/fix-cmake-config-prefix.diff b/debian/patches/fix-cmake-config-prefix.diff
new file mode 100644
index 00000000..4e9ad803
--- /dev/null
+++ b/debian/patches/fix-cmake-config-prefix.diff
@@ -0,0 +1,22 @@
+--- a/cmake/modules/Makefile
++++ b/cmake/modules/Makefile
+@@ -62,17 +62,9 @@
+ 
+ LLVM_CONFIG_CODE := \
+ \# Compute the CMake directory from the LLVMConfig.cmake file location.\n\
+-get_filename_component(_LLVM_CMAKE_DIR "$${CMAKE_CURRENT_LIST_FILE}" PATH)\n\
+-\# Compute the installation prefix from the LLVMConfig.cmake file location.\n\
+-get_filename_component(LLVM_INSTALL_PREFIX "$${CMAKE_CURRENT_LIST_FILE}" PATH)\n
++get_filename_component(_LLVM_CMAKE_DIR "$${CMAKE_CURRENT_LIST_FILE}" PATH)\n
+ 
+-# Compute number of levels (typically 3 - ``share/llvm/cmake/``) to PROJ_prefix
+-# from PROJ_cmake, then emit the appropriate number of calls to
+-# get_filename_components(). Note this assumes there are no spaces in the
+-# cmake_path_suffix variable.
+-cmake_path_suffix := $(subst $(PROJ_prefix),,$(subst $(DESTDIR),,$(PROJ_cmake)))
+-cmake_path_dirs := $(subst /, ,$(cmake_path_suffix))
+-LLVM_CONFIG_CODE += $(foreach __not_used,$(cmake_path_dirs),get_filename_component(LLVM_INSTALL_PREFIX "$${LLVM_INSTALL_PREFIX}" PATH)\n)
++LLVM_CONFIG_CODE += set(LLVM_INSTALL_PREFIX "$(subst /,\/,$(PROJ_prefix))")\n
+ 
+ LLVM_CONFIG_CODE += set(_LLVM_LIBRARY_DIR "$${LLVM_INSTALL_PREFIX}\/lib")
+ 
diff --git a/debian/patches/series b/debian/patches/series
index 3bc27bf3..6c2a39ef 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -42,4 +42,4 @@ clang-analyzer-force-version.diff
 locale-issue-ld.diff
 CVE-2015-2305.patch
 bug783205.patch
-fix-cmake-config-prefix.patch
+fix-cmake-config-prefix.diff