diff --git a/tools/qfcc/include/expr.h b/tools/qfcc/include/expr.h
index 713292fbf..a3348e9d7 100644
--- a/tools/qfcc/include/expr.h
+++ b/tools/qfcc/include/expr.h
@@ -598,7 +598,8 @@ expr_t *incop_expr (int op, expr_t *e, int postop);
 expr_t *array_expr (expr_t *array, expr_t *index);
 expr_t *pointer_expr (expr_t *pointer);
 expr_t *address_expr (expr_t *e1, expr_t *e2, struct type_s *t);
-expr_t *build_if_statement (expr_t *test, expr_t *s1, expr_t *els, expr_t *s2);
+expr_t *build_if_statement (int not, expr_t *test, expr_t *s1, expr_t *els,
+							expr_t *s2);
 expr_t *build_while_statement (expr_t *test, expr_t *statement,
 							   expr_t *break_label, expr_t *continue_label);
 expr_t *build_do_while_statement (expr_t *statement, expr_t *test,
diff --git a/tools/qfcc/source/expr.c b/tools/qfcc/source/expr.c
index 8f72240cf..109d0a51f 100644
--- a/tools/qfcc/source/expr.c
+++ b/tools/qfcc/source/expr.c
@@ -2284,7 +2284,7 @@ address_expr (expr_t *e1, expr_t *e2, type_t *t)
 }
 
 expr_t *
-build_if_statement (expr_t *test, expr_t *s1, expr_t *els, expr_t *s2)
+build_if_statement (int not, expr_t *test, expr_t *s1, expr_t *els, expr_t *s2)
 {
 	int         line = pr.source_line;
 	string_t    file = pr.source_file;
@@ -2299,8 +2299,13 @@ build_if_statement (expr_t *test, expr_t *s1, expr_t *els, expr_t *s2)
 
 	test = convert_bool (test, 1);
 	if (test->type != ex_error) {
-		backpatch (test->e.bool.true_list, tl);
-		backpatch (test->e.bool.false_list, fl);
+		if (not) {
+			backpatch (test->e.bool.true_list, fl);
+			backpatch (test->e.bool.false_list, tl);
+		} else {
+			backpatch (test->e.bool.true_list, tl);
+			backpatch (test->e.bool.false_list, fl);
+		}
 		append_expr (test->e.bool.e, tl);
 		append_expr (if_expr, test);
 	}
diff --git a/tools/qfcc/source/qc-lex.l b/tools/qfcc/source/qc-lex.l
index ff0f89e8a..7d190cb48 100644
--- a/tools/qfcc/source/qc-lex.l
+++ b/tools/qfcc/source/qc-lex.l
@@ -319,6 +319,7 @@ static keyword_t at_keywords[] = {
 	{"static",		STATIC	},
 	{"sizeof",		SIZEOF	},
 	{"nosave",		NOSAVE	},
+	{"not",			NOT		},
 };
 
 // These keywords require the QuakeForge VM to be of any use. ie, they cannot
diff --git a/tools/qfcc/source/qc-parse.y b/tools/qfcc/source/qc-parse.y
index ef7bd1cf6..7304f7f0e 100644
--- a/tools/qfcc/source/qc-parse.y
+++ b/tools/qfcc/source/qc-parse.y
@@ -145,7 +145,7 @@ int yylex (void);
 
 %token				LOCAL RETURN WHILE DO IF ELSE FOR BREAK CONTINUE ELLIPSIS
 %token				NIL IFBE IFB IFAE IFA SWITCH CASE DEFAULT ENUM TYPEDEF
-%token				ARGS EXTERN STATIC SYSTEM NOSAVE OVERLOAD
+%token				ARGS EXTERN STATIC SYSTEM NOSAVE OVERLOAD NOT
 %token	<op>		STRUCT
 %token	<type>		TYPE
 %token	<symbol>	OBJECT TYPE_NAME
@@ -205,7 +205,7 @@ int yylex (void);
 %type	<protocol>	protocol_name
 %type	<methodlist> methodprotolist methodprotolist2
 %type	<symtab>	ivar_decl_list
-%type	<op>		ci
+%type	<op>		ci not
 
 %{
 
@@ -1149,13 +1149,13 @@ statement
 			switch_block = $5;
 			break_label = $2;
 		}
-	| IF '(' texpr ')' statement %prec IFX
+	| IF not '(' texpr ')' statement %prec IFX
 		{
-			$$ = build_if_statement ($3, $5, 0, 0);
+			$$ = build_if_statement ($2, $4, $6, 0, 0);
 		}
-	| IF '(' texpr ')' statement else statement
+	| IF not '(' texpr ')' statement else statement
 		{
-			$$ = build_if_statement ($3, $5, $6, $7);
+			$$ = build_if_statement ($2, $4, $6, $7, $8);
 		}
 	| FOR break_label continue_label
 			'(' opt_expr ';' opt_expr ';' opt_expr ')' statement
@@ -1184,6 +1184,11 @@ statement
 		}
 	;
 
+not
+	: NOT						{ $$ = 1; }
+	| /* empty */				{ $$ = 0; }
+	;
+
 else
 	: ELSE
 		{
diff --git a/tools/qfcc/source/qp-parse.y b/tools/qfcc/source/qp-parse.y
index f8c870ed4..a2b94acea 100644
--- a/tools/qfcc/source/qp-parse.y
+++ b/tools/qfcc/source/qp-parse.y
@@ -354,11 +354,11 @@ statement
 	| compound_statement
 	| IF expression THEN statement else statement
 		{
-			$$ = build_if_statement ($2, $4, $5, $6);
+			$$ = build_if_statement (0, $2, $4, $5, $6);
 		}
 	| IF expression THEN statement %prec IFX
 		{
-			$$ = build_if_statement ($2, $4, 0, 0);
+			$$ = build_if_statement (0, $2, $4, 0, 0);
 		}
 	| WHILE expression DO statement
 		{