diff --git a/llvm/lib/Support/Unix/Signals.inc b/llvm/lib/Support/Unix/Signals.inc
index 1f8c8158d7f3..60ff87644f3f 100644
--- a/llvm/lib/Support/Unix/Signals.inc
+++ b/llvm/lib/Support/Unix/Signals.inc
@@ -28,7 +28,7 @@
 #include <sys/stat.h>
 #endif
 #if HAVE_CXXABI_H
-#include cxxabi.h>
+#include <cxxabi.h>
 #endif
 #if HAVE_DLFCN_H
 #include <dlfcn.h>