diff --git a/stdlib/std/cells.tact b/stdlib/std/cells.tact
index 5a3ca8ff3..388097e27 100644
--- a/stdlib/std/cells.tact
+++ b/stdlib/std/cells.tact
@@ -48,7 +48,7 @@ asm extends fun refs(self: Builder): Int { BREFS }
 
 asm extends fun bits(self: Builder): Int { BBITS }
 
-asm fun builderDepth(builder: Builder): Int { BDEPTH }
+asm extends fun depth(self: Builder): Int { BDEPTH }
 
 //
 // Slice
@@ -113,7 +113,7 @@ asm extends fun firstBits(self: Slice, len: Int): Slice { SDCUTFIRST }
 
 asm extends fun sliceLast(self: Slice, len: Int): Slice { SDCUTLAST }
 
-asm fun sliceDepth(slice: Slice): Int { SDEPTH }
+asm extends fun depth(self: Slice): Int { SDEPTH }
 
 //
 // Slice size
@@ -171,5 +171,5 @@ asm fun computeDataSize(cell: Cell, maxCells: Int): DataSize { CDATASIZE TRIPLE
 
 asm fun computeSliceDataSize(slice: Slice, maxCells: Int): DataSize { SDATASIZE TRIPLE }
 
-asm fun cellDepth(cell: Cell): Int { CDEPTH }
+asm extends fun depth(self: Cell): Int { CDEPTH }
 
diff --git a/stdlib/std/math.tact b/stdlib/std/math.tact
index ed0fb36b5..0141d78d1 100644
--- a/stdlib/std/math.tact
+++ b/stdlib/std/math.tact
@@ -61,4 +61,4 @@ native pow(base: Int, exp: Int): Int;
 
 asm fun pow2(exp: Int): Int { POW2 }
 
-asm fun sgn(x: Int): Int { SGN }
+asm fun sign(x: Int): Int { SGN }
diff --git a/stdlib/stdlib.fc b/stdlib/stdlib.fc
index 9bb15fc64..90d4ea0ba 100644
--- a/stdlib/stdlib.fc
+++ b/stdlib/stdlib.fc
@@ -663,4 +663,4 @@ int get_simple_forward_fee(int workchain, int bits, int cells) asm(cells bits wo
 int get_original_fwd_fee(int workchain, int fwd_fee) asm(fwd_fee workchain) "GETORIGINALFWDFEE";
 int my_storage_due() asm "DUEPAYMENT";
 
-tuple get_fee_cofigs() asm "UNPACKEDCONFIGTUPLE";
+tuple get_fee_configs() asm "UNPACKEDCONFIGTUPLE";