diff --git a/dlls/ntdll/signal_i386.c b/dlls/ntdll/signal_i386.c
index 7a00360fc5d..c83aecc270d 100644
--- a/dlls/ntdll/signal_i386.c
+++ b/dlls/ntdll/signal_i386.c
@@ -1040,6 +1040,26 @@ static HANDLER_DEF(int_handler)
     }
 }
 
+/**********************************************************************
+ *		abrt_handler
+ *
+ * Handler for SIGABRT.
+ */
+static HANDLER_DEF(abrt_handler)
+{
+    EXCEPTION_RECORD rec;
+    CONTEXT context;
+
+    save_context( &context, HANDLER_CONTEXT );
+    rec.ExceptionCode    = EXCEPTION_WINE_ASSERTION;
+    rec.ExceptionFlags   = EH_NONCONTINUABLE;
+    rec.ExceptionRecord  = NULL;
+    rec.ExceptionAddress = (LPVOID)context.Eip;
+    rec.NumberParameters = 0;
+    EXC_RtlRaiseException( &rec, &context ); /* Should never return.. */
+    restore_context( &context, HANDLER_CONTEXT );
+}
+
 
 /***********************************************************************
  *           set_handler
@@ -1124,6 +1144,7 @@ BOOL SIGNAL_Init(void)
     if (set_handler( SIGFPE,  have_sigaltstack, (void (*)())fpe_handler ) == -1) goto error;
     if (set_handler( SIGSEGV, have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
     if (set_handler( SIGILL,  have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
+    if (set_handler( SIGABRT, have_sigaltstack, (void (*)())abrt_handler ) == -1) goto error;
 #ifdef SIGBUS
     if (set_handler( SIGBUS,  have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
 #endif
diff --git a/dlls/ntdll/signal_powerpc.c b/dlls/ntdll/signal_powerpc.c
index 2c0dc683d49..30acb6238f7 100644
--- a/dlls/ntdll/signal_powerpc.c
+++ b/dlls/ntdll/signal_powerpc.c
@@ -381,6 +381,26 @@ static HANDLER_DEF(int_handler)
     }
 }
 
+/**********************************************************************
+ *		abrt_handler
+ *
+ * Handler for SIGABRT.
+ */
+static HANDLER_DEF(abrt_handler)
+{
+    EXCEPTION_RECORD rec;
+    CONTEXT context;
+
+    save_context( &context, HANDLER_CONTEXT );
+    rec.ExceptionCode    = EXCEPTION_WINE_ASSERTION;
+    rec.ExceptionFlags   = EH_NONCONTINUABLE;
+    rec.ExceptionRecord  = NULL;
+    rec.ExceptionAddress = (LPVOID)context.Eip;
+    rec.NumberParameters = 0;
+    EXC_RtlRaiseException( &rec, &context ); /* Should never return.. */
+    restore_context( &context, HANDLER_CONTEXT );
+}
+
 
 /***********************************************************************
  *           set_handler
@@ -440,6 +460,7 @@ BOOL SIGNAL_Init(void)
     if (set_handler( SIGFPE,  have_sigaltstack, (void (*)())fpe_handler ) == -1) goto error;
     if (set_handler( SIGSEGV, have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
     if (set_handler( SIGILL,  have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
+    if (set_handler( SIGABRT, have_sigaltstack, (void (*)())abrt_handler ) == -1) goto error;
 #ifdef SIGBUS
     if (set_handler( SIGBUS,  have_sigaltstack, (void (*)())segv_handler ) == -1) goto error;
 #endif
diff --git a/dlls/ntdll/signal_sparc.c b/dlls/ntdll/signal_sparc.c
index 024c4c2bc03..5d8d211ead0 100644
--- a/dlls/ntdll/signal_sparc.c
+++ b/dlls/ntdll/signal_sparc.c
@@ -343,6 +343,25 @@ static void int_handler( int signal, siginfo_t *info, ucontext_t *ucontext )
     }
 }
 
+/**********************************************************************
+ *		abrt_handler
+ *
+ * Handler for SIGABRT.
+ */
+static HANDLER_DEF(abrt_handler)
+{
+    EXCEPTION_RECORD rec;
+    CONTEXT context;
+
+    save_context( &context, HANDLER_CONTEXT );
+    rec.ExceptionCode    = EXCEPTION_WINE_ASSERTION;
+    rec.ExceptionFlags   = EH_NONCONTINUABLE;
+    rec.ExceptionRecord  = NULL;
+    rec.ExceptionAddress = (LPVOID)context.Eip;
+    rec.NumberParameters = 0;
+    EXC_RtlRaiseException( &rec, &context ); /* Should never return.. */
+    restore_context( &context, HANDLER_CONTEXT );
+}
 
 /***********************************************************************
  *           set_handler
@@ -398,7 +417,8 @@ BOOL SIGNAL_Init(void)
     if (set_handler( SIGILL,  (void (*)())ill_handler  ) == -1) goto error;
     if (set_handler( SIGBUS,  (void (*)())bus_handler  ) == -1) goto error;
     if (set_handler( SIGTRAP, (void (*)())trap_handler ) == -1) goto error;
-    return TRUE;
+    if (set_handler( SIGABRT, (void (*)())abrt_handler ) == -1) goto error;
+   return TRUE;
 
  error:
     perror("sigaction");
diff --git a/include/wine/exception.h b/include/wine/exception.h
index 207a817bba0..8d1421a2f89 100644
--- a/include/wine/exception.h
+++ b/include/wine/exception.h
@@ -183,11 +183,12 @@ static inline EXCEPTION_FRAME * WINE_UNUSED __wine_pop_frame( EXCEPTION_FRAME *f
 /* Wine-specific exceptions codes */
 
 #define EXCEPTION_WINE_STUB       0x80000100  /* stub entry point called */
+#define EXCEPTION_WINE_ASSERTION  0x80000101  /* assertion failed */
 
 /* unhandled return status from vm86 mode */
-#define EXCEPTION_VM86_INTx       0x80000101
-#define EXCEPTION_VM86_STI        0x80000102
-#define EXCEPTION_VM86_PICRETURN  0x80000103
+#define EXCEPTION_VM86_INTx       0x80000110
+#define EXCEPTION_VM86_STI        0x80000111
+#define EXCEPTION_VM86_PICRETURN  0x80000112
 
 extern void __wine_enter_vm86( CONTEXT *context );
 
diff --git a/programs/winedbg/winedbg.c b/programs/winedbg/winedbg.c
index 7a310c254b7..9a5db3b7978 100644
--- a/programs/winedbg/winedbg.c
+++ b/programs/winedbg/winedbg.c
@@ -556,6 +556,9 @@ static	BOOL DEBUG_HandleException(EXCEPTION_RECORD *rec, BOOL first_chance, BOOL
                 DEBUG_Printf(DBG_CHN_MESG, "unimplemented function %s.%s called", dll, name );
             }
             break;
+        case EXCEPTION_WINE_ASSERTION:
+            DEBUG_Printf(DBG_CHN_MESG, "assertion failed");
+            break;
         case EXCEPTION_VM86_INTx:
             DEBUG_Printf(DBG_CHN_MESG, "interrupt %02lx in vm86 mode",
                          rec->ExceptionInformation[0]);
diff --git a/win32/except.c b/win32/except.c
index d952a0d88bf..b8763423c10 100644
--- a/win32/except.c
+++ b/win32/except.c
@@ -135,6 +135,9 @@ static int format_exception_msg( const EXCEPTION_POINTERS *ptr, char *buffer, in
         len = snprintf( buffer, size, "Unimplemented function %s.%s called",
                  (char *)rec->ExceptionInformation[0], (char *)rec->ExceptionInformation[1] );
         break;
+    case EXCEPTION_WINE_ASSERTION:
+        len = snprintf( buffer, size, "Assertion failed" );
+        break;
     case EXCEPTION_VM86_INTx:
         len = snprintf( buffer, size, "Unhandled interrupt %02lx in vm86 mode",
                  rec->ExceptionInformation[0]);