diff --git a/devel/abseil/Makefile b/devel/abseil/Makefile
index 5fd803ceb288..ca0d4ddffd28 100644
--- a/devel/abseil/Makefile
+++ b/devel/abseil/Makefile
@@ -1,27 +1,27 @@
 PORTNAME=	abseil
 PORTVERSION=	20250127.1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel
 MASTER_SITES=	https://github.com/abseil/abseil-cpp/releases/download/${PORTVERSION}/
 DISTNAME=	${PORTNAME}-cpp-${PORTVERSION}
 
 PATCH_SITES=	https://github.com/abseil/abseil-cpp/commit/
 PATCHFILES+=	a4950fba03217d0ea102c98ce795c189bba50383.patch:-p1 # https://github.com/llvm/llvm-project/pull/138835
 
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Abseil Common Libraries (C++)
 WWW=		https://abseil.io/
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake compiler:c++17-lang pathfix
 CMAKE_ARGS=	-DBUILD_SHARED_LIBS:BOOL=ON \
 		-DCMAKE_CXX_STANDARD=17 # force the same highest C++ standard because of ABI differences: see https://github.com/abseil/abseil-cpp/issues/819
 PATHFIX_CMAKELISTSTXT=	AbseilHelpers.cmake
 
 _GET_SOVER=	${GREP} ABSL_SOVERSION ${WRKSRC}/CMakeLists.txt \
 		2>/dev/null | ${CUT} -d\" -f2
 PLIST_SUB+=	LIBSUFX=${_GET_SOVER:sh}
 
 .include <bsd.port.mk>
diff --git a/devel/abseil/files/patch-absl_base_internal_unscaledcycleclock.cc b/devel/abseil/files/patch-absl_base_internal_unscaledcycleclock.cc
new file mode 100644
index 000000000000..d49deebd7fa1
--- /dev/null
+++ b/devel/abseil/files/patch-absl_base_internal_unscaledcycleclock.cc
@@ -0,0 +1,18 @@
+--- absl/base/internal/unscaledcycleclock.cc.orig	2026-08-30 18:57:11 UTC
++++ absl/base/internal/unscaledcycleclock.cc
+@@ -93,9 +93,12 @@ double UnscaledCycleClock::Frequency() {
+   static once_flag init_timebase_frequency_once;
+   static double timebase_frequency = 0.0;
+   base_internal::LowLevelCallOnce(&init_timebase_frequency_once, [&]() {
+-    size_t length = sizeof(timebase_frequency);
+-    sysctlbyname("kern.timecounter.tc.timebase.frequency", &timebase_frequency,
+-                 &length, nullptr, 0);
++    uint64_t freq = 0;
++    size_t length = sizeof(freq);
++    if (sysctlbyname("kern.timecounter.tc.timebase.frequency", &freq, &length,
++                     nullptr, 0) == 0) {
++      timebase_frequency = static_cast<double>(freq);
++    }
+   });
+   return timebase_frequency;
+ #else