diff --git a/stm32data/__main__.py b/stm32data/__main__.py
index 1834e51..b25c0bb 100755
--- a/stm32data/__main__.py
+++ b/stm32data/__main__.py
@@ -105,6 +105,7 @@ perimap = [
     ('.*:RNG:rng1_v2_1', ('rng', 'v1', 'RNG')),
     ('.*:RNG:rng1_v3_1', ('rng', 'v1', 'RNG')),
     ('.*:SPI:spi2_v1_4', ('spi', 'f1', 'SPI')),
+    ('.*:SPI:spi2s1_v2_1', ('spi', 'v1', 'SPI')),
     ('.*:SPI:spi2s1_v2_2', ('spi', 'v1', 'SPI')),
     ('.*:SPI:spi2s1_v3_2', ('spi', 'v2', 'SPI')),
     ('.*:SPI:spi2s1_v3_3', ('spi', 'v2', 'SPI')),