diff --git a/src/c2ffi.cpp b/src/c2ffi.cpp
index 644bfc2..efb60b6 100644
--- a/src/c2ffi.cpp
+++ b/src/c2ffi.cpp
@@ -67,6 +67,8 @@ int main(int argc, char *argv[]) {
 
     add_includes(ci, sys.includes, false, true);
     add_includes(ci, sys.sys_includes, true, true);
+    add_includes(ci, sys.frameworks, false, true, true);
+    add_includes(ci, sys.sys_frameworks, true, true, true);
 
     C2FFIASTConsumer *astc = NULL;
 
diff --git a/src/include/c2ffi/init.h b/src/include/c2ffi/init.h
index 055c3fd..96be41b 100644
--- a/src/include/c2ffi/init.h
+++ b/src/include/c2ffi/init.h
@@ -27,10 +27,11 @@
 
 namespace c2ffi {
     void add_include(clang::CompilerInstance &ci, const char *path,
-                     bool isAngled = false, bool show_error = false);
+                     bool isAngled = false, bool show_error = false,
+                     bool is_framework = false);
     void add_includes(clang::CompilerInstance &ci,
                       c2ffi::IncludeVector &v, bool is_angled = false,
-                      bool show_error = false);
+                      bool show_error = false, bool is_framework = false);
 
     void init_ci(config &c, clang::CompilerInstance &ci);
 }
diff --git a/src/include/c2ffi/opt.h b/src/include/c2ffi/opt.h
index 885068e..8f162f5 100644
--- a/src/include/c2ffi/opt.h
+++ b/src/include/c2ffi/opt.h
@@ -46,6 +46,8 @@ namespace c2ffi {
 
         IncludeVector includes;
         IncludeVector sys_includes;
+        IncludeVector frameworks;
+        IncludeVector sys_frameworks;
         OutputDriver *od;
 
         std::ostream  *output;
diff --git a/src/init.cpp b/src/init.cpp
index 19655c3..920d2e6 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -49,12 +49,16 @@
 using namespace c2ffi;
 
 void c2ffi::add_include(clang::CompilerInstance &ci, const char *path, bool is_angled,
-                        bool show_error) {
+                        bool show_error, bool is_framework) {
     struct stat buf{};
     if(stat(path, &buf) < 0 || !S_ISDIR(buf.st_mode)) {
         if(show_error) {
             std::cerr << "Error: Not a directory: ";
-            if(is_angled)
+            if(is_framework && is_angled)
+                std::cerr << "--sys-frameworks ";
+            else if(is_framework)
+                std::cerr << "--frameworks ";
+            else if(is_angled)
                 std::cerr << "-i ";
             else
                 std::cerr << "-I ";
@@ -68,7 +72,7 @@ void c2ffi::add_include(clang::CompilerInstance &ci, const char *path, bool is_a
 
     auto &fm = ci.getFileManager();
     if (auto dirent = fm.getDirectoryRef(path); dirent) {
-        clang::DirectoryLookup lookup(*dirent, clang::SrcMgr::C_System, false);
+        clang::DirectoryLookup lookup(*dirent, clang::SrcMgr::C_System, is_framework);
 
         ci.getPreprocessor().getHeaderSearchInfo()
             .AddSearchPath(lookup, is_angled);
@@ -77,9 +81,9 @@ void c2ffi::add_include(clang::CompilerInstance &ci, const char *path, bool is_a
 
 void c2ffi::add_includes(clang::CompilerInstance &ci,
                          c2ffi::IncludeVector &includeVector, bool is_angled,
-                         bool show_error) {
+                         bool show_error, bool is_framework) {
     for(auto &&include : includeVector)
-        add_include(ci, include.c_str(), is_angled, show_error);
+        add_include(ci, include.c_str(), is_angled, show_error, is_framework);
 }
 
 void c2ffi::init_ci(config &c, clang::CompilerInstance &ci) {
diff --git a/src/options.cpp b/src/options.cpp
index 67eb4a2..db926e5 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -39,13 +39,16 @@ enum {
     NOSTDINC        = CHAR_MAX+5,
     WCHAR_SIZE      = CHAR_MAX+6,
     ERROR_LIMIT     = CHAR_MAX+7,
-
+    FRAMEWORKS       = CHAR_MAX+8,
+    SYS_FRAMEWORKS   = CHAR_MAX+9,
     OPTION_MAX
 };
 
 static struct option options[] = {
     { "include",     required_argument, 0, 'I' },
     { "sys-include", required_argument, 0, 'i' },
+    { "frameworks",  required_argument, 0, FRAMEWORKS },
+    { "sys-frameworks", required_argument, 0, SYS_FRAMEWORKS },
     { "driver",      required_argument, 0, 'D' },
     { "help",        no_argument,       0, 'h' },
     { "macro-file",  required_argument, 0, 'M' },
@@ -149,6 +152,14 @@ void c2ffi::process_args(config &config, int argc, char *argv[]) {
                 config.sys_includes.push_back(optarg);
                 break;
 
+            case FRAMEWORKS:
+                config.frameworks.push_back(optarg);
+                break;
+
+            case SYS_FRAMEWORKS:
+                config.sys_frameworks.push_back(optarg);
+                break;
+
             case 'D':
                 if(config.od) {
                     std::cerr << "Error: you may only specify one output driver"
@@ -292,6 +303,8 @@ void usage(void) {
         "Options:\n"
         "      -I, --include        Add a \"LOCAL\" include path\n"
         "      -i, --sys-include    Add a <system> include path\n"
+        "      --frameworks         Add a framework directory to the include path\n"
+        "      --sys-frameworks     Add a system framework directory to the include path\n"
         "      --nostdinc           Disable standard include path\n"
         "      -D, --driver         Specify an output driver (default: "
          << OutputDrivers[0].name << ")\n"