diff --git a/src/runtime/asm_arm64.s b/src/runtime/asm_arm64.s
index 8931daa2cd..732abe13af 100644
--- a/src/runtime/asm_arm64.s
+++ b/src/runtime/asm_arm64.s
@@ -996,6 +996,7 @@ TEXT runtime·addmoduledata(SB),NOSPLIT,$0-0
 	MOVD	R0, runtime·lastmoduledatap(SB)
 	MOVD	8(RSP), R27
 	ADD	$0x10, RSP
+	RET
 
 TEXT ·checkASM(SB),NOSPLIT,$0-1
 	MOVW	$1, R3
diff --git a/src/runtime/asm_ppc64x.s b/src/runtime/asm_ppc64x.s
index 1ecdf3b2cd..f3b193ae31 100644
--- a/src/runtime/asm_ppc64x.s
+++ b/src/runtime/asm_ppc64x.s
@@ -1079,6 +1079,7 @@ TEXT runtime·addmoduledata(SB),NOSPLIT|NOFRAME,$0-0
 	MOVD	R3, runtime·lastmoduledatap(SB)
 	MOVD	0(R1), R31
 	ADD	$8, R1
+	RET
 
 TEXT ·checkASM(SB),NOSPLIT,$0-1
 	MOVW	$1, R3