diff --git a/source/nan_definitions.mk b/source/nan_definitions.mk
index 6371b24efd0..70ec992917c 100644
--- a/source/nan_definitions.mk
+++ b/source/nan_definitions.mk
@@ -112,17 +112,19 @@ endif
         export NAN_OPENEXR_INC ?= -I$(NAN_OPENEXR)/include -I$(NAN_OPENEXR)/include/IlmImf -I$(NAN_OPENEXR)/include/Imath -I$(NAN_OPENEXR)/include/Iex
       endif
     else
-      export NAN_OPENEXR ?= $(LCGDIR)/openexr
-      export NAN_OPENEXR_INC ?= -I$(NAN_OPENEXR)/include -I$(NAN_OPENEXR)/include/OpenEXR
-	  ifeq ($(OS),darwin)
-	    ifeq ($(CPU),powerpc)
+      ifeq ($(OS),darwin)
+          export NAN_OPENEXR ?= $(LCGDIR)/openexr
+	  ifeq ($(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 $(NAN_OPENEXR)/lib/libIlmThread.a
-		endif
 	  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
+          export NAN_OPENEXR ?= /usr/local
+	  export NAN_OPENEXR_LIBS ?= $(NAN_OPENEXR)/lib/libIlmImf.a $(NAN_OPENEXR)/lib/libHalf.a $(NAN_OPENEXR)/lib/libIex.a
+      endif
+      export NAN_OPENEXR_INC ?= -I$(NAN_OPENEXR)/include -I$(NAN_OPENEXR)/include/OpenEXR
+
     endif
   # Platform Dependent settings go below: