diff --git a/cmake/modules/platform/toolcfg/gnu.cmake b/cmake/modules/platform/toolcfg/gnu.cmake
index 389b48b009b..bde7019cd01 100644
--- a/cmake/modules/platform/toolcfg/gnu.cmake
+++ b/cmake/modules/platform/toolcfg/gnu.cmake
@@ -23,7 +23,7 @@ set(OMR_WARNING_AS_ERROR_FLAG -Werror)
 
 set(OMR_ENHANCED_WARNING_FLAG -Wall)
 
-list(APPEND OMR_PLATFORM_COMPILE_OPTIONS -pthread)
+list(APPEND OMR_PLATFORM_COMPILE_OPTIONS -pthread -fno-strict-aliasing)
 
 if(OMR_ENV_DATA64)
 	if (NOT (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64"))
diff --git a/gc/CMakeLists.txt b/gc/CMakeLists.txt
index 2d370f7068d..5fc6a71917c 100644
--- a/gc/CMakeLists.txt
+++ b/gc/CMakeLists.txt
@@ -323,7 +323,7 @@ if(OMR_ENHANCED_WARNINGS)
 endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang|AppleClang")
-	target_compile_options(omrgc PRIVATE -fno-strict-aliasing)
+	target_compile_options(omrgc PRIVATE)
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "XL|VisualAge")
 	target_compile_options(omrgc PRIVATE -qalias=noansi)
 endif()
diff --git a/omrmakefiles/rules.linux.mk b/omrmakefiles/rules.linux.mk
index 8568ffe7815..00ecd4a56f3 100644
--- a/omrmakefiles/rules.linux.mk
+++ b/omrmakefiles/rules.linux.mk
@@ -187,21 +187,25 @@ ifeq (x86,$(OMR_HOST_ARCH))
         GLOBAL_CXXFLAGS+=-m32 -msse2 -I/usr/include/nptl
         GLOBAL_CPPFLAGS+=-DJ9X86
     endif
+    GLOBAL_CFLAGS+=-fno-strict-aliasing
+    GLOBAL_CXXFLAGS+=-fno-strict-aliasing
 
 else ifeq (aarch64,$(OMR_HOST_ARCH))
-    GLOBAL_CFLAGS+=-march=armv8-a+simd -Wno-unused-but-set-variable
-    GLOBAL_CXXFLAGS+=-march=armv8-a+simd -Wno-unused-but-set-variable
+    GLOBAL_CFLAGS+=-march=armv8-a+simd -Wno-unused-but-set-variable -fno-strict-aliasing
+    GLOBAL_CXXFLAGS+=-march=armv8-a+simd -Wno-unused-but-set-variable -fno-strict-aliasing
     GLOBAL_CPPFLAGS+=-DJ9AARCH64 -DAARCH64GNU -DAARCH64 -DFIXUP_UNALIGNED -Wno-unused-but-set-variable
 
 else
     ifeq (arm,$(OMR_HOST_ARCH))
-        GLOBAL_CFLAGS+=$(ARM_ARCH_FLAGS) -Wno-unused-but-set-variable
+        GLOBAL_CFLAGS+=$(ARM_ARCH_FLAGS) -Wno-unused-but-set-variable -fno-strict-aliasing
         GLOBAL_CPPFLAGS+=-DJ9ARM -DARMGNU -DARM -DFIXUP_UNALIGNED $(ARM_ARCH_FLAGS) -Wno-unused-but-set-variable
     else
         ifeq (ppc,$(OMR_HOST_ARCH))
             GLOBAL_CPPFLAGS+=-DLINUXPPC
 
             ifeq (gcc,$(OMR_TOOLCHAIN))
+                GLOBAL_CFLAGS+=-fno-strict-aliasing
+                GLOBAL_CXXFLAGS+=-fno-strict-aliasing
                 ifeq (1,$(OMR_ENV_DATA64))
                     GLOBAL_CFLAGS+=-m64
                     GLOBAL_CXXFLAGS+=-m64