diff --git a/src/spicelib/devices/isrc/isrcacld.c b/src/spicelib/devices/isrc/isrcacld.c
index 2a8cefff1..e7e8a5611 100644
--- a/src/spicelib/devices/isrc/isrcacld.c
+++ b/src/spicelib/devices/isrc/isrcacld.c
@@ -25,7 +25,7 @@ ISRCacLoad(GENmodel *inModel, CKTcircuit *ckt)
 
             double acReal, acImag;
 
-            if ((ckt->CKTmode & MODEACNOISE) && (here == ckt->noise_input)) {
+            if ((ckt->CKTmode & MODEACNOISE) && ((GENinstance *) here == ckt->noise_input)) {
                 acReal = 1.0;
                 acImag = 0.0;
             } else {
diff --git a/src/spicelib/devices/vsrc/vsrcacld.c b/src/spicelib/devices/vsrc/vsrcacld.c
index 8229bb842..0ff2ee8f6 100644
--- a/src/spicelib/devices/vsrc/vsrcacld.c
+++ b/src/spicelib/devices/vsrc/vsrcacld.c
@@ -24,7 +24,7 @@ VSRCacLoad(GENmodel *inModel, CKTcircuit *ckt)
 
             double acReal, acImag;
 
-            if ((ckt->CKTmode & MODEACNOISE) && (here == ckt->noise_input)) {
+            if ((ckt->CKTmode & MODEACNOISE) && ((GENinstance *) here == ckt->noise_input)) {
                 acReal = 1.0;
                 acImag = 0.0;
             } else {