diff --git a/Android.mk b/Android.mk
index 2d3aa96..f767b20 100644
--- a/Android.mk
+++ b/Android.mk
@@ -249,7 +249,8 @@
         -std=$(CPP_VERSION) \
         -fexceptions \
         -Wno-unused-parameter \
-        -frtti
+        -frtti \
+        -DFMT_HEADER_ONLY
 
 # The variable to enable/disable the CL backend (ARMNN_COMPUTE_CL_ENABLED) is declared in android-nn-driver/Android.mk
 ifeq ($(ARMNN_COMPUTE_CL_ENABLED),1)