diff --git a/src/core/gyp_run.pro b/src/core/gyp_run.pro
index 244ce7ec05ba019b2a7b6a6655bd9c9103c22e27..f79972a2e8941ae6465564445811b11df84e2450 100644
--- a/src/core/gyp_run.pro
+++ b/src/core/gyp_run.pro
@@ -52,7 +52,7 @@ cross_compile {
         !isEmpty(MARCH): GYP_ARGS += "-D arm_arch=\"$$MARCH\""
 
         MTUNE = $$extractCFlag("-mtune=.*")
-        !isEmpty(MTUNE): GYP_ARGS += "-D arm_tune=\"$$MTUNE\""
+        GYP_ARGS += "-D arm_tune=\"$$MTUNE\""
 
         MFLOAT = $$extractCFlag("-mfloat-abi=.*")
         !isEmpty(MFLOAT): GYP_ARGS += "-D arm_float_abi=\"$$MFLOAT\""