diff --git a/src/backend/port/tas/solaris_sparc.s b/src/backend/port/tas/solaris_sparc.s
index be4c7e97fb1..d35a854c181 100644
--- a/src/backend/port/tas/solaris_sparc.s
+++ b/src/backend/port/tas/solaris_sparc.s
@@ -8,17 +8,18 @@
 
 #if defined(__sparcv9) || defined(__sparc)
 
-         .section        ".text"
-         .align  8
-         .skip   24
-         .align  4
+	.section        ".text"
+	.align  8
+	.skip   24
+	.align  4
 
-         .global pg_atomic_cas
+	.global pg_atomic_cas
 pg_atomic_cas:
-         cas     [%o0],%o2,%o1
-         mov     %o1,%o0
-         retl
-         nop
-         .type   pg_atomic_cas,2
-         .size   pg_atomic_cas,(.-pg_atomic_cas)
+	
+	cas     [%o0],%o2,%o1
+	mov     %o1,%o0
+	retl
+	nop
+	.type   pg_atomic_cas,2
+	.size   pg_atomic_cas,(.-pg_atomic_cas)
 #endif
diff --git a/src/backend/port/tas/solaris_x86.s b/src/backend/port/tas/solaris_x86.s
index 072a3c35ccf..db1dea7c291 100644
--- a/src/backend/port/tas/solaris_x86.s
+++ b/src/backend/port/tas/solaris_x86.s
@@ -6,29 +6,29 @@
 
 / '/' is the comment for x86, while '!' is the comment for Sparc
 
-         .file   "tas.s"
+	.file   "tas.s"
 
 #if defined(__amd64)
-         .code64
+	.code64
 #endif
 
-         .globl pg_atomic_cas
-         .type pg_atomic_cas, @function
+	.globl pg_atomic_cas
+	.type pg_atomic_cas, @function
 
-         .section .text, "ax"
-         .align 16
+	.section .text, "ax"
+	.align 16
 
 pg_atomic_cas:
 #if defined(__amd64)
-         movl       %edx,%eax
-         lock
-         cmpxchgl   %esi,(%rdi)
+	movl       %edx,%eax
+	lock
+	cmpxchgl   %esi,(%rdi)
 #else
-         movl    4(%esp), %edx
-         movl    8(%esp), %ecx
-         movl    12(%esp), %eax
-         lock
-         cmpxchgl %ecx, (%edx)
+	movl    4(%esp), %edx
+	movl    8(%esp), %ecx
+	movl    12(%esp), %eax
+	lock
+	cmpxchgl %ecx, (%edx)
 #endif
-         ret
-         .size pg_atomic_cas, . - pg_atomic_cas
+	ret
+	.size pg_atomic_cas, . - pg_atomic_cas