diff --git a/debian/changelog b/debian/changelog
index c0541dec3..85ff92a3e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -12,6 +12,8 @@ linux-tools (4.2-1) UNRELEASED; urgency=medium
   * hyperv-daemons: Fix fortify format warning
   * debian/rules: Add support for DEB_BUILD_OPTIONS=parallel=N
   * debian/control: Update policy version to 3.9.6; no changes required
+  * linux-perf: Revert "perf build: Fix libunwind feature detection on 32-bit
+    x86", which was a regression for us
 
  -- Ben Hutchings <ben@decadent.org.uk>  Fri, 25 Sep 2015 18:42:20 +0100
 
diff --git a/debian/patches/revert-perf-build-fix-libunwind-feature-detection-on.patch b/debian/patches/revert-perf-build-fix-libunwind-feature-detection-on.patch
new file mode 100644
index 000000000..6787fa2ea
--- /dev/null
+++ b/debian/patches/revert-perf-build-fix-libunwind-feature-detection-on.patch
@@ -0,0 +1,23 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Fri, 25 Sep 2015 22:50:50 +0100
+Subject: Revert "perf build: Fix libunwind feature detection on 32-bit x86"
+
+This reverts commit 05b41775e2edd69a83f592e3534930c934d4038e.
+It broke feature detection that was working just fine for us.
+---
+ tools/perf/config/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
+index 094ddae..9b8937c 100644
+--- a/tools/perf/config/Makefile
++++ b/tools/perf/config/Makefile
+@@ -32,7 +32,7 @@ ifeq ($(ARCH),x86)
+     LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
+     $(call detected,CONFIG_X86_64)
+   else
+-    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
++    LIBUNWIND_LIBS = -lunwind -lunwind-x86
+   endif
+   NO_PERF_REGS := 0
+ endif
diff --git a/debian/patches/series b/debian/patches/series
index f8ec6ae43..97b2e641c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -14,3 +14,4 @@ tools-perf-remove-shebangs.patch
 tools-lib-traceevent-use-ldflags.patch
 tools-lib-lockdep-use-ldflags.patch
 tools-hv-fix-fortify-format-warning.patch
+revert-perf-build-fix-libunwind-feature-detection-on.patch