diff --git a/src/spfx.c b/src/spfx.c
index a1afa08..e610023 100644
--- a/src/spfx.c
+++ b/src/spfx.c
@@ -22,6 +22,8 @@
 #define SPFX_CHUNK        32              /**< Chunk to allocate when needed. */
 #define SHAKE_VEL_MOD     0.0008          /**< Shake modifier. */
 
+#define HAPTIC_UPDATE_INTERVAL 0.1        /**< Time between haptic updates. */
+
 /* Special hardcoded effects.. */
 
 /* Shake, AKA RUMBLE! */
@@ -35,6 +37,7 @@ extern SDL_Haptic* haptic;                    /**< From joystick.c */
 extern unsigned int haptic_query;             /**< From joystick.c */
 static int haptic_rumble = -1;                /**< Haptic rumble effect ID. */
 static SDL_HapticEffect haptic_rumbleEffect;  /**< Haptic rumble effect. */
+static double haptic_lastUpdate = 0.;         /**< Timer to update haptic effect again. */
 #endif
 
 /**
@@ -315,8 +318,14 @@ static void spfx_update_layer(SPFX* layer, int* nlayer, const double dt) {
 void spfx_start(const double dt) {
   GLdouble bx, by, x, y;
   double inc;
+#if SDL_VERSION_ATLEAST(1,3,0)
+  /* Decrement the haptic timer. */
+  if(haptic_lastUpdate > 0.)
+    haptic_lastUpdate -= dt;
+#endif
 
   if(shake_off == 1) return; /* Save the cycles. */
+
   bx = SCREEN_W / 2;
   by = SCREEN_H / 2;
 
@@ -364,8 +373,7 @@ void spfx_shake(double mod) {
   vect_pset(&shake_vel, SHAKE_VEL_MOD*shake_rad, RNGF() * 2. * M_PI);
 
   /* Rumble if it wasn't rumbling before. */
-  if(shake_off == 1)
-    spfx_hapticRumble();
+  spfx_hapticRumble();
 
   /* Notify that rumble is active. */
   shake_off = 0;
@@ -406,6 +414,10 @@ static void spfx_hapticRumble(void) {
   SDL_HapticEffect* efx;
 
   if(haptic_rumble >= 0) {
+    /* Not time to update yet. */
+    if(haptic_lastUpdate > 0.)
+      return;
+
     /* Stop the effect if it was playing. */
     SDL_HapticStopEffect(haptic, haptic_rumble);
 
@@ -419,6 +431,9 @@ static void spfx_hapticRumble(void) {
 
     /* Run the new effect. */
     SDL_HapticRunEffect(haptic, haptic_rumble, 1);
+
+    /* Set timer again. */
+    haptic_lastUpdate = HAPTIC_UPDATE_INTERVAL;
   }
 #endif
 }