diff --git a/universal7885-common/apps/aidl-support/fm/default/Android.bp b/universal7885-common/apps/aidl-support/fm/default/Android.bp
index 1c87ffd..52c2fec 100644
--- a/universal7885-common/apps/aidl-support/fm/default/Android.bp
+++ b/universal7885-common/apps/aidl-support/fm/default/Android.bp
@@ -1,6 +1,8 @@
 cc_defaults {
   name: "fm_aidl_defaults",
-  cflags: ["-DTRACK_SIZE=30"],
+  cflags: [
+     "-DTRACK_SIZE=30",
+     "-DSYSFS_SPACING=3",],
 }
 
 cc_binary {
diff --git a/universal7885-common/apps/aidl-support/fm/default/FMSupport.cpp b/universal7885-common/apps/aidl-support/fm/default/FMSupport.cpp
index cb11794..bf80f38 100644
--- a/universal7885-common/apps/aidl-support/fm/default/FMSupport.cpp
+++ b/universal7885-common/apps/aidl-support/fm/default/FMSupport.cpp
@@ -44,11 +44,11 @@ constexpr const char *FM_FREQ_SEEK =
   case GetType::GET_TYPE_FM_RMSSI:
     NOT_SUPPORTED;
   case GetType::GET_TYPE_FM_BEFORE_CHANNEL:
-    FileIO::writeline(FM_FREQ_SEEK, "0 " + std::to_string(3 * 10));
+    FileIO::writeline(FM_FREQ_SEEK, "0 " + std::to_string(SYSFS_SPACING * 10));
     *_aidl_return = FileIO::readline(FM_FREQ_CTL);
     break;
   case GetType::GET_TYPE_FM_NEXT_CHANNEL:
-    FileIO::writeline(FM_FREQ_SEEK, "1 " + std::to_string(3 * 10));
+    FileIO::writeline(FM_FREQ_SEEK, "1 " + std::to_string(SYSFS_SPACING * 10));
     *_aidl_return = FileIO::readline(FM_FREQ_CTL);
     break;
   case GetType::GET_TYPE_FM_SYSFS_IF:
@@ -92,7 +92,7 @@ static inline bool vector_contains(const std::vector<int> vec,
 ::ndk::ScopedAStatus FMSupport::getFreqsList(std::vector<int> *_aidl_return) {
   RETURN_IF_FAILED_LOCK;
   for (int i = 0; i < TRACK_SIZE; i++) {
-    FileIO::writeline(FM_FREQ_SEEK, "1 " + std::to_string(3 * 10));
+    FileIO::writeline(FM_FREQ_SEEK, "1 " + std::to_string(SYSFS_SPACING * 10));
     int freq = FileIO::readline(FM_FREQ_CTL);
     if (vector_contains(*_aidl_return, freq))
       continue;