diff --git a/fftma_module/gen/lib_src/prebuild_gwn.c b/fftma_module/gen/lib_src/prebuild_gwn.c
index 4e376f1..b6b092f 100644
--- a/fftma_module/gen/lib_src/prebuild_gwn.c
+++ b/fftma_module/gen/lib_src/prebuild_gwn.c
@@ -54,5 +54,5 @@ void prebuild_gwn(struct grid_mod grid, int n[3], struct realization_mod* realin
     t = clock() - t;
     double time_taken = ((double)t)/CLOCKS_PER_SEC; // calculate the elapsed time
 
-    log_info("RESULT = success, ELAPSED = %f seconds");
+    log_info("RESULT = success, ELAPSED = %f seconds", time_taken);
 }