diff --git a/debian/changelog b/debian/changelog
index 571a4309..697f7d39 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+llvm-toolchain-7 (1:7~+rc3-2) UNRELEASED; urgency=medium
+
+  [ John Paul Adrian Glaubitz ]
+  * Fix inverted logic in ifeq statement for POLLY_ENABLE
+    and OPENMP_ENABLE (Closes: #908646)
+
+ -- John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>  Wed, 12 Sep 2018 10:40:28 +0200
+
 llvm-toolchain-7 (1:7~+rc3-1) unstable; urgency=medium
 
   [ John Paul Adrian Glaubitz ]
diff --git a/debian/rules b/debian/rules
index 7a259da6..5fa570d9 100755
--- a/debian/rules
+++ b/debian/rules
@@ -107,13 +107,13 @@ endif
 
 # Enable polly (or not)
 POLLY_ENABLE=yes
-ifeq (,$(filter-out $(DEB_HOST_ARCH), powerpc powerpcspe s390x))
+ifneq (,$(filter $(DEB_HOST_ARCH), powerpc powerpcspe s390x))
   POLLY_ENABLE=no
 endif
 
 # Enable openmp (or not)
 OPENMP_ENABLE=yes
-ifeq (,$(filter-out $(DEB_HOST_ARCH), powerpc powerpcspe riscv64 sparc64 s390x))
+ifneq (,$(filter $(DEB_HOST_ARCH), powerpc powerpcspe riscv64 sparc64 s390x))
   OPENMP_ENABLE=no
 endif