diff --git a/Adafruit_Floppy.cpp b/Adafruit_Floppy.cpp
index c03cbee..fbe7d1f 100644
--- a/Adafruit_Floppy.cpp
+++ b/Adafruit_Floppy.cpp
@@ -280,8 +280,7 @@ int8_t Adafruit_Floppy::track(void) { return _track; }
     @return Number of pulses we actually captured
 */
 /**************************************************************************/
-uint32_t Adafruit_Floppy::capture_track(uint8_t *pulses, uint32_t max_pulses)
-    __attribute__((optimize("O3"))) {
+uint32_t Adafruit_Floppy::capture_track(uint8_t *pulses, uint32_t max_pulses) {
   unsigned pulse_count;
   uint8_t *pulses_ptr = pulses;
   uint8_t *pulses_end = pulses + max_pulses;
diff --git a/Adafruit_Floppy.h b/Adafruit_Floppy.h
index 92a39b5..b10aca8 100644
--- a/Adafruit_Floppy.h
+++ b/Adafruit_Floppy.h
@@ -36,7 +36,8 @@ public:
   int8_t track(void);
   void step(bool dir, uint8_t times);
 
-  uint32_t capture_track(uint8_t *pulses, uint32_t max_pulses);
+  uint32_t capture_track(uint8_t *pulses, uint32_t max_pulses)
+      __attribute__((optimize("O3")));
   void print_pulse_bins(uint8_t *pulses, uint32_t num_pulses,
                         uint8_t max_bins = 64);
   void print_pulses(uint8_t *pulses, uint32_t num_pulses);