diff --git a/NEWS b/NEWS
index 2548403b775..d9709800d8a 100644
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,9 @@ PHP                                                                        NEWS
 - Intl:
   . Bumped ICU requirement to ICU >= 57.1. (cmb)
 
+- OPcache:
+  . Fixed ZTS OPcache build on Cygwin. (cmb)
+
 - Output:
   . Fixed calculation of aligned buffer size. (cmb)
 
diff --git a/TSRM/TSRM.c b/TSRM/TSRM.c
index 81136bee4da..e99993204b6 100644
--- a/TSRM/TSRM.c
+++ b/TSRM/TSRM.c
@@ -778,7 +778,7 @@ TSRM_API size_t tsrm_get_ls_cache_tcb_offset(void)
 	return 0;
 #elif defined(__x86_64__) && defined(__GNUC__) && !defined(__FreeBSD__) && \
 	!defined(__NetBSD__) && !defined(__OpenBSD__) && !defined(__MUSL__) && \
-	!defined(__HAIKU__)
+	!defined(__HAIKU__) && !defined(__CYGWIN__)
 	size_t ret;
 
 	asm ("movq _tsrm_ls_cache@gottpoff(%%rip),%0"
@@ -786,7 +786,7 @@ TSRM_API size_t tsrm_get_ls_cache_tcb_offset(void)
 	return ret;
 #elif defined(__i386__) && defined(__GNUC__) && !defined(__FreeBSD__) && \
 	!defined(__NetBSD__) && !defined(__OpenBSD__) && !defined(__MUSL__) && \
-	!defined(__HAIKU__)
+	!defined(__HAIKU__) && !defined(__CYGWIN__)
 	size_t ret;
 
 	asm ("leal _tsrm_ls_cache@ntpoff,%0"