diff --git a/lib/Target/Makefile b/lib/Target/Makefile
index 8b75294c5b6..db010df4b41 100644
--- a/lib/Target/Makefile
+++ b/lib/Target/Makefile
@@ -15,7 +15,7 @@ BUILD_ARCHIVE = 1
 # value for PARALLEL_DIRS which must be set before Makefile.rules is included
 include $(LEVEL)/Makefile.config
 
-PARALLEL_DIRS := $(TARGETS_TO_BUILD)
+PARALLEL_DIRS := $(filter-out ARM, $(TARGETS_TO_BUILD))
 
 include $(LLVM_SRC_ROOT)/Makefile.rules