diff --git a/src/ImathTest/half_perf_test.cpp b/src/ImathTest/half_perf_test.cpp
index ca75ec38..885388dc 100644
--- a/src/ImathTest/half_perf_test.cpp
+++ b/src/ImathTest/half_perf_test.cpp
@@ -23,13 +23,13 @@
 
 #include <memory>
 
-static const unsigned short imath_float_half_exp_table[1 << 9] =
-#include "eLut.h"
-
     using namespace IMATH_NAMESPACE;
 
 #ifdef IMATH_USE_HALF_LOOKUP_TABLE
 
+static const unsigned short imath_float_half_exp_table[1 << 9] =
+#include "eLut.h"
+
 static inline float
 table_half_cast (const half& h)
 {