diff --git a/src/system/libiec/src/iec104.cpp b/src/system/libiec/src/iec104.cpp
index 5c2a32e..5a2003e 100644
--- a/src/system/libiec/src/iec104.cpp
+++ b/src/system/libiec/src/iec104.cpp
@@ -59,7 +59,11 @@ typedef struct
 	sem_t                       sem;
 	uint16_t                    in;
 	std::vector<st_ring_out_ptr> out_ptrs;
-	struct { uint16_t idx; float val; } yc[DISTURB_YC_LEN];
+	struct
+	{
+		uint16_t idx;
+		float    val;
+	} yc[DISTURB_YC_LEN];
 } ring_disturb_yc_t;
 
 /**
@@ -71,7 +75,14 @@ typedef struct
 	sem_t                       sem;
 	uint16_t                    in;
 	std::vector<st_ring_out_ptr> out_ptrs;
-	struct { uint8_t st, ty; uint16_t pot, ms; uint32_t sec; } soe[SOE_LEN];
+	struct
+	{
+		uint8_t  st;
+		uint8_t  ty;
+		uint16_t pot;
+		uint16_t ms;
+		uint32_t sec;
+	} soe[SOE_LEN];
 } ring_soe_t;
 
 /**
@@ -83,7 +94,14 @@ typedef struct
 	sem_t                       sem;
 	uint16_t                    in;
 	std::vector<st_ring_out_ptr> out_ptrs;
-	struct { uint16_t idx; float val; __CP56Time2a tm; uint16_t ms; uint32_t sec; } dd[DD_LEN];
+	struct
+	{
+		uint16_t      idx;
+		float         val;
+		__CP56Time2a  tm;
+		uint16_t      ms;
+		uint32_t      sec;
+	} dd[DD_LEN];
 } ring_dd_t;
 
 /**