diff --git a/source/nan_definitions.mk b/source/nan_definitions.mk
index 459b843f69a..7cad16ff551 100644
--- a/source/nan_definitions.mk
+++ b/source/nan_definitions.mk
@@ -131,7 +131,7 @@ endif
 	  ifeq ($(CPU),powerpc)
 	      export NAN_OPENEXR_LIBS ?= $(NAN_OPENEXR)/lib/libIlmImf.a $(NAN_OPENEXR)/lib/libHalf.a $(NAN_OPENEXR)/lib/libIex.a
 	  else
-	      export NAN_OPENEXR_LIBS ?= $(NAN_OPENEXR)/lib/libIlmImf.a $(NAN_OPENEXR)/lib/libHalf.a $(NAN_OPENEXR)/lib/libIex.a
+	      export NAN_OPENEXR_LIBS ?= $(NAN_OPENEXR)/lib/libIlmImf.a $(NAN_OPENEXR)/lib/libHalf.a $(NAN_OPENEXR)/lib/libIex.a $(NAN_OPENEXR)/lib/libIlmThread.a
 	  endif
       else
         ifeq ($(OS),linux)