diff --git a/webrtc/common_audio/signal_processing/include/signal_processing_library.h b/webrtc/common_audio/signal_processing/include/signal_processing_library.h
index 8fa38139b7..3db793b00c 100644
--- a/webrtc/common_audio/signal_processing/include/signal_processing_library.h
+++ b/webrtc/common_audio/signal_processing/include/signal_processing_library.h
@@ -53,8 +53,6 @@
     ((int32_t) ((int32_t)(a) * (int32_t)(b)))
 #define WEBRTC_SPL_UMUL(a, b) \
     ((uint32_t) ((uint32_t)(a) * (uint32_t)(b)))
-#define WEBRTC_SPL_UMUL_RSFT16(a, b) \
-    ((uint32_t) ((uint32_t)(a) * (uint32_t)(b)) >> 16)
 #define WEBRTC_SPL_UMUL_16_16(a, b) \
     ((uint32_t) (uint16_t)(a) * (uint16_t)(b))
 #define WEBRTC_SPL_UMUL_16_16_RSFT16(a, b) \
diff --git a/webrtc/common_audio/signal_processing/signal_processing_unittest.cc b/webrtc/common_audio/signal_processing/signal_processing_unittest.cc
index 158f838ed1..7b1f7fd5e5 100644
--- a/webrtc/common_audio/signal_processing/signal_processing_unittest.cc
+++ b/webrtc/common_audio/signal_processing/signal_processing_unittest.cc
@@ -46,7 +46,6 @@ TEST_F(SplTest, MacroTest) {
     EXPECT_EQ(-2147483645, WEBRTC_SPL_MUL(a, b));
     EXPECT_EQ(2147483651u, WEBRTC_SPL_UMUL(a, b));
     b = WEBRTC_SPL_WORD16_MAX >> 1;
-    EXPECT_EQ(65535u, WEBRTC_SPL_UMUL_RSFT16(a, b));
     EXPECT_EQ(1073627139u, WEBRTC_SPL_UMUL_16_16(a, b));
     EXPECT_EQ(16382u, WEBRTC_SPL_UMUL_16_16_RSFT16(a, b));
     EXPECT_EQ(4294918147u, WEBRTC_SPL_UMUL_32_16(a, b));
diff --git a/webrtc/modules/audio_coding/codecs/isac/fix/source/arith_routines_hist.c b/webrtc/modules/audio_coding/codecs/isac/fix/source/arith_routines_hist.c
index 5c23f7ab71..c66be2e484 100644
--- a/webrtc/modules/audio_coding/codecs/isac/fix/source/arith_routines_hist.c
+++ b/webrtc/modules/audio_coding/codecs/isac/fix/source/arith_routines_hist.c
@@ -67,9 +67,9 @@ int WebRtcIsacfix_EncHistMulti(Bitstr_enc *streamData,
     W_upper_LSB = W_upper & 0x0000FFFF;
     W_upper_MSB = WEBRTC_SPL_RSHIFT_W32(W_upper, 16);
     W_lower = WEBRTC_SPL_UMUL(W_upper_MSB, cdfLo);
-    W_lower += WEBRTC_SPL_UMUL_RSFT16(W_upper_LSB, cdfLo);
+    W_lower += ((W_upper_LSB * cdfLo) >> 16);
     W_upper = WEBRTC_SPL_UMUL(W_upper_MSB, cdfHi);
-    W_upper += WEBRTC_SPL_UMUL_RSFT16(W_upper_LSB, cdfHi);
+    W_upper += ((W_upper_LSB * cdfHi) >> 16);
 
     /* shift interval such that it begins at zero */
     W_upper -= ++W_lower;