diff --git a/src/bindgen/utilities.rs b/src/bindgen/utilities.rs
index bea1d99a4..ff375457c 100644
--- a/src/bindgen/utilities.rs
+++ b/src/bindgen/utilities.rs
@@ -263,7 +263,7 @@ impl SynAbiHelpers for Option<syn::Abi> {
     fn is_c(&self) -> bool {
         if let Some(ref abi) = *self {
             if let Some(ref lit_string) = abi.name {
-                return lit_string.value() == "C";
+                return matches!(lit_string.value().as_str(), "C" | "C-unwind");
             }
         }
         false
@@ -280,7 +280,7 @@ impl SynAbiHelpers for Option<syn::Abi> {
 impl SynAbiHelpers for syn::Abi {
     fn is_c(&self) -> bool {
         if let Some(ref lit_string) = self.name {
-            lit_string.value() == "C"
+            matches!(lit_string.value().as_str(), "C" | "C-unwind")
         } else {
             false
         }
diff --git a/tests/expectations/abi_string.c b/tests/expectations/abi_string.c
new file mode 100644
index 000000000..6a7a59047
--- /dev/null
+++ b/tests/expectations/abi_string.c
@@ -0,0 +1,8 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+void c(void);
+
+void c_unwind(void);
diff --git a/tests/expectations/abi_string.compat.c b/tests/expectations/abi_string.compat.c
new file mode 100644
index 000000000..0fad55a07
--- /dev/null
+++ b/tests/expectations/abi_string.compat.c
@@ -0,0 +1,16 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+void c(void);
+
+void c_unwind(void);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
diff --git a/tests/expectations/abi_string.cpp b/tests/expectations/abi_string.cpp
new file mode 100644
index 000000000..0e86af9af
--- /dev/null
+++ b/tests/expectations/abi_string.cpp
@@ -0,0 +1,13 @@
+#include <cstdarg>
+#include <cstdint>
+#include <cstdlib>
+#include <ostream>
+#include <new>
+
+extern "C" {
+
+void c();
+
+void c_unwind();
+
+} // extern "C"
diff --git a/tests/expectations/abi_string.pyx b/tests/expectations/abi_string.pyx
new file mode 100644
index 000000000..59a83d3bc
--- /dev/null
+++ b/tests/expectations/abi_string.pyx
@@ -0,0 +1,11 @@
+from libc.stdint cimport int8_t, int16_t, int32_t, int64_t, intptr_t
+from libc.stdint cimport uint8_t, uint16_t, uint32_t, uint64_t, uintptr_t
+cdef extern from *:
+  ctypedef bint bool
+  ctypedef struct va_list
+
+cdef extern from *:
+
+  void c();
+
+  void c_unwind();
diff --git a/tests/rust/abi_string.rs b/tests/rust/abi_string.rs
new file mode 100644
index 000000000..f685532e2
--- /dev/null
+++ b/tests/rust/abi_string.rs
@@ -0,0 +1,5 @@
+#[no_mangle]
+pub extern "C" fn c() {}
+
+#[no_mangle]
+pub extern "C-unwind" fn c_unwind() {}