diff --git a/benchmarks/tracking/scripts/tracking_performance.py b/benchmarks/tracking/scripts/tracking_performance.py
index 66f6d73b81472a92dfe7e170b6f16da559435222..6f582c74a6490ff0ef8617cfec75ab2c115d2bf0 100644
--- a/benchmarks/tracking/scripts/tracking_performance.py
+++ b/benchmarks/tracking/scripts/tracking_performance.py
@@ -186,7 +186,7 @@ if __name__ == '__main__':
                              weights=np.repeat(1./float(rec_p.shape[0]), rec_p.shape[0]), ec='k')
     nbins = hbins.shape[0] - 1
     ax.set_ylabel('Normalized Counts / {:d} Bins'.format(nbins), fontsize=20)
-    ax.set_xlabel('$\delta p$ (%)', fontsize=20)
+    ax.set_xlabel(r'$\delta$ p (%)', fontsize=20)
 
     # theta resolution
     ax = axs.flat[2]