diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5be7bef..5f9ed79 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,7 +57,7 @@ option(DEPRECATE_HARD          "Do not include deprecated functions in the libra
 if("${CMAKE_SYSTEM_NAME}" STREQUAL "Android")
    set(CMAKE_C_STANDARD        "99" CACHE STRING "The C standard to compile against")
 else()
-   set(CMAKE_C_STANDARD        "90" CACHE STRING "The C standard to compile against")
+   set(CMAKE_C_STANDARD        "99" CACHE STRING "The C standard to compile against")
 endif()
 option(CMAKE_C_EXTENSIONS      "Whether compiler extensions are supported"             OFF)
 option(ENABLE_WERROR           "Enable compilation with -Werror"                       OFF)
/tmp/bbb.patch (END)diff --git a/src/libgit2/CMakeLists.txt b/src/libgit2/CMakeLists.txt
index 0dddb02..af85510 100644
--- a/src/libgit2/CMakeLists.txt
+++ b/src/libgit2/CMakeLists.txt
@@ -60,7 +60,7 @@ target_link_libraries(libgit2package ${LIBGIT2_SYSTEM_LIBS})
 target_include_directories(libgit2package SYSTEM PRIVATE ${LIBGIT2_INCLUDES})
 target_include_directories(libgit2package INTERFACE $<INSTALL_INTERFACE:include>)
 
-set_target_properties(libgit2package PROPERTIES C_STANDARD 90)
+set_target_properties(libgit2package PROPERTIES C_STANDARD 99)
 set_target_properties(libgit2package PROPERTIES C_EXTENSIONS OFF)
 set_target_properties(libgit2package PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
 set_target_properties(libgit2package PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})