diff --git a/firmware/target/arm/stm32/cpu-stm32h743.h b/firmware/target/arm/stm32/cpu-stm32h743.h
index c0a789708d..add2130f5f 100644
--- a/firmware/target/arm/stm32/cpu-stm32h743.h
+++ b/firmware/target/arm/stm32/cpu-stm32h743.h
@@ -82,7 +82,7 @@
 #define STM32_SRAM2_SIZE        (128 * 1024)
 
 #define STM32_SRAM3_BASE        0x30040000
-#define STM32_SRAM3_SIZE        (128 * 1024)
+#define STM32_SRAM3_SIZE        (32 * 1024)
 
 #define STM32_SRAM4_BASE        0x38000000
 #define STM32_SRAM4_SIZE        (64 * 1024)