diff --git a/dsp/docs/src/user_guide/L1.rst b/dsp/docs/src/user_guide/L1.rst
index 916f5bdf8c..dab9dce231 100755
--- a/dsp/docs/src/user_guide/L1.rst
+++ b/dsp/docs/src/user_guide/L1.rst
@@ -138,7 +138,7 @@ output of the SSR FFT. Following is the recommended flow for working with 1-D S
 
 Start With Floating Point Model
 -------------------------------
-Currently, 1-D SSR FFT can be used with ap_fxied<>, float, and double types. The following table list
+Currently, 1-D SSR FFT can be used with ap_fixed<>, float, and double types. The following table list
 the support for synthesis and simulation.
 
 +------------------------------+---------------------------+----------------------------+