diff --git a/docker/Dockerfile b/docker/Dockerfile
index 15658ee..e14b250 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -48,5 +48,5 @@ ENV AR llvm-ar-${LLVM_VERSION}
 ENV RANLIB llvm-ranlib-${LLVM_VERSION}
 
 ENV CFLAGS --target=wasm32-wasi --sysroot=/wasi-sysroot
-ENV CXXFLAGS --target=wasm32-wasi --sysroot=/wasi-sysroot
+ENV CXXFLAGS --target=wasm32-wasi --sysroot=/wasi-sysroot -fno-exceptions
 ENV LDFLAGS --target=wasm32-wasi --sysroot=/wasi-sysroot
diff --git a/docker/wasi-sdk-pthread.cmake b/docker/wasi-sdk-pthread.cmake
index 6135445..2646ff4 100644
--- a/docker/wasi-sdk-pthread.cmake
+++ b/docker/wasi-sdk-pthread.cmake
@@ -28,6 +28,8 @@ set(CMAKE_CXX_COMPILER_TARGET ${triple})
 set(CMAKE_ASM_COMPILER_TARGET ${triple})
 SET(CMAKE_SYSROOT /wasi-sysroot)
 
+set(CMAKE_CXX_FLAGS_INIT "-fno-exceptions")
+
 # Don't look in the sysroot for executables to run during the build
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 # Only look in the sysroot (not in the host paths) for the rest
diff --git a/docker/wasi-sdk.cmake b/docker/wasi-sdk.cmake
index eabb877..a57449b 100644
--- a/docker/wasi-sdk.cmake
+++ b/docker/wasi-sdk.cmake
@@ -21,6 +21,8 @@ set(CMAKE_CXX_COMPILER_TARGET ${triple})
 set(CMAKE_ASM_COMPILER_TARGET ${triple})
 SET(CMAKE_SYSROOT /wasi-sysroot)
 
+set(CMAKE_CXX_FLAGS_INIT "-fno-exceptions")
+
 # Don't look in the sysroot for executables to run during the build
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 # Only look in the sysroot (not in the host paths) for the rest
diff --git a/wasi-sdk-pthread.cmake b/wasi-sdk-pthread.cmake
index ba66023..f2448de 100644
--- a/wasi-sdk-pthread.cmake
+++ b/wasi-sdk-pthread.cmake
@@ -35,6 +35,8 @@ set(CMAKE_C_COMPILER_TARGET ${triple})
 set(CMAKE_CXX_COMPILER_TARGET ${triple})
 set(CMAKE_ASM_COMPILER_TARGET ${triple})
 
+set(CMAKE_CXX_FLAGS_INIT "-fno-exceptions")
+
 # Don't look in the sysroot for executables to run during the build
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 # Only look in the sysroot (not in the host paths) for the rest
diff --git a/wasi-sdk.cmake b/wasi-sdk.cmake
index f6a0059..99202e7 100644
--- a/wasi-sdk.cmake
+++ b/wasi-sdk.cmake
@@ -32,6 +32,8 @@ set(CMAKE_C_COMPILER_TARGET ${triple})
 set(CMAKE_CXX_COMPILER_TARGET ${triple})
 set(CMAKE_ASM_COMPILER_TARGET ${triple})
 
+set(CMAKE_CXX_FLAGS_INIT "-fno-exceptions")
+
 # Don't look in the sysroot for executables to run during the build
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 # Only look in the sysroot (not in the host paths) for the rest