diff --git a/src/os/unix/ngx_sunpro_amd64.il b/src/os/unix/ngx_sunpro_amd64.il
index c26e6f717..c6519574d 100644
--- a/src/os/unix/ngx_sunpro_amd64.il
+++ b/src/os/unix/ngx_sunpro_amd64.il
@@ -31,7 +31,12 @@
 
 
 / ngx_cpu_pause()
+/
+/ the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware
+/ capability added by linker because Solaris/amd64 does not know about it:
+/
+/ ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]
 
        .inline ngx_cpu_pause,0
-       pause
+       rep; nop
        .end