diff --git a/drivers/AnalogIn.h b/drivers/AnalogIn.h
index 6e1cc5bc76..287e6a3d7e 100644
--- a/drivers/AnalogIn.h
+++ b/drivers/AnalogIn.h
@@ -114,7 +114,7 @@ public:
     }
 
 protected:
-    #if !defined(DOXYGEN_ONLY)
+#if !defined(DOXYGEN_ONLY)
     virtual void lock()
     {
         _mutex->lock();
@@ -127,7 +127,7 @@ protected:
 
     analogin_t _adc;
     static SingletonPtr<PlatformMutex> _mutex;
-    #endif //!defined(DOXYGEN_ONLY)
+#endif //!defined(DOXYGEN_ONLY)
 };
 
 } // namespace mbed
diff --git a/drivers/AnalogOut.h b/drivers/AnalogOut.h
index 8057723a5a..111e1006bf 100644
--- a/drivers/AnalogOut.h
+++ b/drivers/AnalogOut.h
@@ -141,7 +141,7 @@ public:
     }
 
 protected:
-    #if !defined(DOXYGEN_ONLY)
+#if !defined(DOXYGEN_ONLY)
     virtual void lock()
     {
         _mutex.lock();
@@ -154,7 +154,7 @@ protected:
 
     dac_t _dac;
     PlatformMutex _mutex;
-    #endif //!defined(DOXYGEN_ONLY)
+#endif //!defined(DOXYGEN_ONLY)
 };
 
 } // namespace mbed
diff --git a/drivers/CAN.h b/drivers/CAN.h
index 8dd81446ee..d3565ee727 100644
--- a/drivers/CAN.h
+++ b/drivers/CAN.h
@@ -124,7 +124,7 @@ public:
      *         wait(0.2);
      *     }
      * }
-     * 
+     *
      * @endcode
      */
     CAN(PinName rd, PinName td);
diff --git a/drivers/DigitalIn.h b/drivers/DigitalIn.h
index a5679b1225..8eceb07707 100644
--- a/drivers/DigitalIn.h
+++ b/drivers/DigitalIn.h
@@ -121,9 +121,9 @@ public:
     }
 
 protected:
-    #if !defined(DOXYGEN_ONLY)
+#if !defined(DOXYGEN_ONLY)
     gpio_t gpio;
-    #endif //!defined(DOXYGEN_ONLY)
+#endif //!defined(DOXYGEN_ONLY)
 };
 
 } // namespace mbed
diff --git a/drivers/DigitalInOut.h b/drivers/DigitalInOut.h
index 74a5747f20..88411957df 100644
--- a/drivers/DigitalInOut.h
+++ b/drivers/DigitalInOut.h
@@ -165,9 +165,9 @@ public:
     }
 
 protected:
-    #if !defined(DOXYGEN_ONLY)
+#if !defined(DOXYGEN_ONLY)
     gpio_t gpio;
-    #endif //!defined(DOXYGEN_ONLY)
+#endif //!defined(DOXYGEN_ONLY)
 };
 
 } // namespace mbed
diff --git a/drivers/DigitalOut.h b/drivers/DigitalOut.h
index 5758c2658c..8f9059173e 100644
--- a/drivers/DigitalOut.h
+++ b/drivers/DigitalOut.h
@@ -144,9 +144,9 @@ public:
     }
 
 protected:
-    #if !defined(DOXYGEN_ONLY)
+#if !defined(DOXYGEN_ONLY)
     gpio_t gpio;
-    #endif //!defined(DOXYGEN_ONLY)
+#endif //!defined(DOXYGEN_ONLY)
 };
 
 } // namespace mbed