diff --git a/reactos/lib/sdk/crt/libcntpr.rbuild b/reactos/lib/sdk/crt/libcntpr.rbuild
index 7bb24736d16..b3714aade69 100644
--- a/reactos/lib/sdk/crt/libcntpr.rbuild
+++ b/reactos/lib/sdk/crt/libcntpr.rbuild
@@ -61,6 +61,7 @@
 			<directory name="i386">
 				<file>ceil.S</file>
 				<file>cos.S</file>
+				<file>floor.S</file>
 				<file>log.S</file>
 				<file>log10.S</file>
 				<file>sin.S</file>
@@ -68,6 +69,7 @@
 			</directory>
 			<directory name="amd64">
 				<file>alldiv.S</file>
+				<file>pow.S</file>
 			</directory>
 		</if>
 		<file>abs.c</file>
diff --git a/reactos/lib/sdk/crt/math/i386/floor.S b/reactos/lib/sdk/crt/math/i386/floor.S
index 8f6ccff190b..f70b70d0db1 100644
--- a/reactos/lib/sdk/crt/math/i386/floor.S
+++ b/reactos/lib/sdk/crt/math/i386/floor.S
@@ -11,9 +11,9 @@
 #else
 	.align 4
 #endif
-.globl floor
-	.def	floor;	.scl	2;	.type	32;	.endef
-floor:
+.globl _floor
+	.def	_floor;	.scl	2;	.type	32;	.endef
+_floor:
 #ifdef _WIN64
 	fldt	(%rdx)
 	subq	$24,%rsp